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Old 08-29-2010, 05:12 PM   #1
ormandj
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Default '11 STi, stock HU, want to upgrade

Hi,

I have a 2011 5-door, and want to swap out the head unit (I have the non-nav) with a Kenwood 9960, however, I'd like to retain use of the steering wheel controls.

As the '11 has a different stereo, I wanted to know what harness I should get, and where to get it from. It'd be nice to also retain the bluetooth controls, in addition to the normal steering wheel controls.

I see in another thread that the same panel will work as worked for the 2008+, and that I can get it from japanparts, so I'll go that route.

Any gotchas to be aware of? I've never done a navigation system install, so it's all new to me.

Thanks!
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Old 08-29-2010, 05:17 PM   #2
Snow Drift
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You can use the PAC SWI-JACK for the steering controls and a Kenwood receiver. You will most likely lose use of the bluetooth controls, but im not sure.
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Old 08-30-2010, 04:49 PM   #3
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You most likely will lose your Bluetooth controls. However, that won't matter much because the 9960 has built-in Bluetooth. The 9960 should have voice control as well, so you will have plenty of options to control your system.

As far as the install goes, its pretty straight forward. I installed a 9140 in my car and didn't have any problems. It was my first head unit install and went really well, so you shouldn't worry about it.
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Old 08-30-2010, 05:08 PM   #4
SeRious10
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You will lose the stock bluetooth feature. Harness I am not positive about but I would think its the same. Don't see Subaru droping tons of money to change the wiring as well. Buy an 08+ harness and see if it works. At most you would be out $8-10.
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Old 08-30-2010, 05:20 PM   #5
SVXdc
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The Axxess ASWC will be able to work with the new BT SWC buttons (off-hook, on-hook, talk). However, Axxess (Metra) will need to create a firmware update so the ASWC will recognize the new buttons. Once they have the new firmware, you'll simply connect the module to all 3 of the car's SWC wires. You won't need to add any resistors (unlike the PAC unit).

I'm putting together that information to send Metra (if they don't get ahold of a new Impreza themselves first). I recently helped them create the new firmware for the 2010-2011 Legacy/Outbacks with the new BT buttons (and before anyone asks, no, the wiring and resistors are different than in Imprezas).

ADDED: Metra says that their firmware already supports the new SWC buttons in 2011 Imprezas. See my reply below.

2011 Imprezas with the BT/phone SWC buttons added a 3rd SWC wire. See my pin-out for more information (and see notes at the bottom about radio harnesses with all of the SWC wires).

The SWC buttons in 2011 Imprezas with the base (non premium) radio are the same as previous years, so the ASWC will work with those now.

Last edited by SVXdc; 09-14-2010 at 07:58 PM.
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Old 08-30-2010, 05:42 PM   #6
ormandj
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Quote:
Originally Posted by SVXdc View Post
The Axxess ASWC will be able to work with the new BT SWC buttons (off-hook, on-hook, talk). However, Axxess (Metra) will need to create a firmware update so the ASWC will recognize the new buttons. Once they have the new firmware, you'll simply connect the module to all 3 of the car's SWC wires. You won't need to add any resistors (unlike the PAC unit).

I'm putting together that information to send Metra (if they don't get ahold of a new Impreza themselves first). I recently helped them create the new firmware for the 2010-2011 Legacy/Outbacks with the new BT buttons (and before anyone asks, no, the wiring and resistors are different than in Imprezas).

2011 Imprezas with the BT/phone SWC buttons added a 3rd SWC wire. See my pin-out for more information (and see notes at the bottom about radio harnesses with all of the SWC wires).

The SWC buttons in 2011 Imprezas with the base (non premium) radio are the same as previous years, so the ASWC will work with those now.
Sent an email regarding the data for Metra. Thanks!
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Old 09-03-2010, 08:19 PM   #7
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I'm new, so bare with me... So what is being said that eventually something will exist that will allow the use of all of the stock steering wheel buttons on the 2011 (BT and volume/controls)? I'd like to install the kenwood DNX series as well. Thanks for any help!
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Old 09-04-2010, 04:53 PM   #8
SVXdc
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Yes. The ASWC interface module exists now. But the manufacturer (Axxess / Metra) will need to update the software in order for it to automatically recognize Imprezas with the new phone buttons.

Last time, it only took them a couple of weeks to send me an advance copy of the new firmware after I sent them the information.
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Old 09-05-2010, 11:19 AM   #9
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Will this work with the Legacy platform as well?
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Old 09-05-2010, 11:57 AM   #10
SVXdc
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Yes - Metra already released the update back in July for 2010-2011 Legacy/Outback models with their new phone buttons. See this thread on LegacyGT.com
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Old 09-07-2010, 02:25 PM   #11
ormandj
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Quote:
Originally Posted by SVXdc View Post
The Axxess ASWC will be able to work with the new BT SWC buttons (off-hook, on-hook, talk). However, Axxess (Metra) will need to create a firmware update so the ASWC will recognize the new buttons. Once they have the new firmware, you'll simply connect the module to all 3 of the car's SWC wires. You won't need to add any resistors (unlike the PAC unit).

I'm putting together that information to send Metra (if they don't get ahold of a new Impreza themselves first). I recently helped them create the new firmware for the 2010-2011 Legacy/Outbacks with the new BT buttons (and before anyone asks, no, the wiring and resistors are different than in Imprezas).

2011 Imprezas with the BT/phone SWC buttons added a 3rd SWC wire. See my pin-out for more information (and see notes at the bottom about radio harnesses with all of the SWC wires).

The SWC buttons in 2011 Imprezas with the base (non premium) radio are the same as previous years, so the ASWC will work with those now.
I'm now looking at the Clarion NX700, as apparently the Kenwood's have some issues with lag (played with one at a store, it was sluggish). Will your wiring harness/the ASWC work with the Clarion? I'm assuming yes, as long as I can find the wiring diagram for the Clarion? Which harness should I buy? Excuse my ignorance, I've only done a HU swap once, and it was 7+ years ago. If so - I'll be ordering and also send you the information you need to deal with Metra and get their unit sorted out. Also, is there a way to retain function of the AUX/USB port in the center console? I've not pulled the stock radio, so don't know how they are wired. If you can keep the advice/suggestions generic, that'd be great, because the more I read about the HUs, the less I'm sure which one I wish to purchase.

Is this the harness I need (non-CAN, as per your PM)?: http://ae64.com/20-pinfwdharness.htm (My car is non-nav from factory)

Thanks!

Last edited by ormandj; 09-07-2010 at 04:44 PM.
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Old 09-08-2010, 12:45 AM   #12
SVXdc
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The ASWC will work with nearly all HUs (including a Clarion NX700), so no problem there.

Your new HU will come with its own wiring harness -- plugs into the back of the HU and ends with plain wires. You have to solder or crimp that onto a harness for the particular car you're installing into.

My 20-pin harness fits all Imprezas from 2008-up. For 2011, I add a 3rd SWC wire (in addition to the two I already had for 2008-2010 models).

I've seen a picture of the USB harness that plugs into the factory HU. It's non-standard, so it will require an adapter to convert that into a standard USB "A" plug (since most HUs seem to have an "A" socket). There may be an adapter already available out there, but I've only been able to spend a little time searching so far.

The USB pod in the center console may already contain an "A" socket inside. Need somebody to open theirs up and take pictures.

I'll be able to make an adapter to retain the 3.5mm aux jack, but need to get the correct 16-pin connector shells for that. Not sure how long that will take.
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Old 09-08-2010, 04:23 PM   #13
SeRious10
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Quote:
Originally Posted by SVXdc View Post
Yes. The ASWC interface module exists now. But the manufacturer (Axxess / Metra) will need to update the software in order for it to automatically recognize Imprezas with the new phone buttons.

Last time, it only took them a couple of weeks to send me an advance copy of the new firmware after I sent them the information.
Good info to know. My source said they were working on it but might take awhile
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Old 09-09-2010, 09:48 PM   #14
Toolman_Dash
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Quote:
Originally Posted by SVXdc View Post
The ASWC will work with nearly all HUs (including a Clarion NX700), so no problem there.

Your new HU will come with its own wiring harness -- plugs into the back of the HU and ends with plain wires. You have to solder or crimp that onto a harness for the particular car you're installing into.

My 20-pin harness fits all Imprezas from 2008-up. For 2011, I add a 3rd SWC wire (in addition to the two I already had for 2008-2010 models).

I've seen a picture of the USB harness that plugs into the factory HU. It's non-standard, so it will require an adapter to convert that into a standard USB "A" plug (since most HUs seem to have an "A" socket). There may be an adapter already available out there, but I've only been able to spend a little time searching so far.

The USB pod in the center console may already contain an "A" socket inside. Need somebody to open theirs up and take pictures.

I'll be able to make an adapter to retain the 3.5mm aux jack, but need to get the correct 16-pin connector shells for that. Not sure how long that will take.
Just the info I was looking to find. The question now is: what sort of plug does the USB harness use on the stock HU? I don't get my car for another week, but I was going to pull apart my center console and see if the USB connector is an A-type plug. It would certainly be nice to either use the existing center console plugs/cabling or unplug whatever is connected to the plugs and run new 3.5mm and USB cables. I guess I won't know until I pull it apart... unless someone wants to be a guinea-pig first?

A semi-related question: Anyone know if Alpine's "full-speed" ipod cables are able to be extended using a female dock connector to A-type USB plug?
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Old 09-10-2010, 12:39 AM   #15
SVXdc
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Here's the USB harness that plugs into the 2011 BT HU:
Quote:

(click for larger images)

Connector is made by Hirose, in their GT17 series.

GT17 Series Description

Catalog (PDF file, 1.9MB). See catalog page 135 (page 25 of this PDF file). This Impreza plug is their Key variation "A".

The catalog doesn't show a mating 4-pin inline connector in that same pin configuration (2 rows of 2 pins). However, the document is 2 years old so hopefully they've added that to the series.

Number printed on the rear is GT17HN-4DS-HU (which is the p/n for the housing, one of the 5 parts that comprise the plug)
Unlike a standard USB "A" or "B" plug, it latches into the socket on the HU.

Has anyone seen this plug anywhere else?

Last edited by SVXdc; 09-13-2010 at 01:56 AM.
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Old 09-10-2010, 08:58 AM   #16
Toolman_Dash
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Quote:
Originally Posted by SVXdc View Post
Here's the USB harness that plugs into the 2011 BT HU:

(click for larger images)
Unlike a standard USB "A" or "B" plug, it latches into the socket on the HU.

Has anyone seen this plug anywhere else?
That is really weird. I have never seen that before. I will see if I can find something. It looks like a B-type on a right-angle with a proprietary connector and end. Weird. Is the other end of the cable the same?
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Old 09-10-2010, 11:57 AM   #17
SVXdc
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Quote:
Originally Posted by Toolman_Dash View Post
It looks like a B-type on a right-angle with a proprietary connector and end. Weird. Is the other end of the cable the same?
It's really quite different from a B plug...
Quote:
Top: USB A plug

Bottom: USB B plug
I haven't seen the other end yet. We need someone to open up their center console

Last edited by SVXdc; 09-29-2010 at 03:38 PM.
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Old 09-10-2010, 03:43 PM   #18
first suby 2010
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Quote:
Originally Posted by SVXdc View Post
Here's the USB harness that plugs into the 2011 BT HU:


Unlike a standard USB "A" or "B" plug, it latches into the socket on the HU.

Has anyone seen this plug anywhere else?
any more/clearer pictures? also any of the one on the back of the radio it plugs into?
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Old 09-10-2010, 11:22 PM   #19
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Quote:
Originally Posted by SVXdc View Post
It's really quite different from a B plug...


I haven't seen the other end yet. We need someone to open up their center console
I was just thinking that it was similar to a B-type because of the general size and spacing of the pin locations... but yeah, the shape is off.
If nobody beats me to it I will open up my console when my car is ready.
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Old 09-11-2010, 12:45 AM   #20
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how are the stock speakers?
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Old 09-12-2010, 11:38 AM   #21
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Quote:
Originally Posted by exquisite88 View Post
how are the stock speakers?
Horrible. Lots of vibrations in the door if you turn the bass up. Sounds like Crap if you turn the bass down... will be changing these things out as soon as I decide what route to go with the head unit. So get on with figuring out these adapters...
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Old 09-12-2010, 02:11 PM   #22
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The 2011 Impreza owner sent me some more pictures of the car's USB plug, which I've added to my earlier post (#15). It's made by Hirose. I've included links to their catalog. Hope we can find an off-the-shelf cable to convert that to a standard USB A plug.
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Old 09-12-2010, 09:09 PM   #23
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Quote:
Originally Posted by SVXdc View Post
The 2011 Impreza owner sent me some more pictures of the car's USB plug, which I've added to my earlier post (#15). It's made by Hirose. I've included links to their catalog. Hope we can find an off-the-shelf cable to convert that to a standard USB A plug.
Terrific news! I suppose we could fab up a cable if there is a matching gender plug. Research time? If the other end in the center console is an A-type plug it might just be easier running a separate USB cable for a new headunit and leave the existing cable in case we want to put them back to stock.
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Old 09-14-2010, 08:14 PM   #24
SVXdc
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A couple of 2011 owners measured the new SWC resistors, and I sent that information to Metra with the wiring diagrams. Metra says that the configuration is similar to one that some Toyotas with BT use, so the current ASWC firmware will already work with the new Imprezas.

Quote:
Connect the ASWC as follows:

2008-2011 Subaru Impreza and Forester with standard 6 audio buttons (without Bluetooth buttons):
  • Subaru 20-pin radio harness' SWC pin 14 (Brown/Black on my harness) to ground
  • ASWC pin 2 White/Green to ground
  • ASWC pin 5 Gray/Red to Subaru 20-pin radio harness' SWC pin 4 (Brown/Red on my harness)

2011 Subaru Impreza and Forester with phone/BT buttons (5 audio + 3 BT buttons):
  • Subaru 20-pin radio harness' SWC pin 14 (Brown/Black on my harness) to ground
  • ASWC pin 4 Green/Orange to Subaru 20-pin radio harness' SWC pin 4 (Brown/Red on my harness)
  • ASWC pin 8 Black/Green to Subaru 20-pin radio harness' SWC pin 13 (Brown/Blue on my harness [formerly Black/Yellow])

Do not connect to any other wires on the ASWC harness -- individually insulate the ends.
Keep in mind that even HUs with Bluetooth capability may not accept remote control commands for all of the car's buttons. For example, some may only have a single remote command that does both "place call' and "end call". You can manually assign any leftover buttons to other audio functions.

I should have the 16-pin shells to make aux adapters in about a week.

Last edited by SVXdc; 08-24-2011 at 04:28 PM.
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Old 09-15-2010, 04:10 PM   #25
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I did mine using PAC's controller, specifically a PAC SWI-PS (for Pioneer) and it worked just fine.

I did notice though was that the resistance values for the steering wheel buttons are different for the MY '11. After much head-banging, I got it to work using programming code 9 instead of 3 as it specified for '10 and earlier. If you go this route, you'll figure out that I mean (if you are doing this to a '11 that is).

However, it did only worked with the volume and track up/down. The 'mode' button is on a different wire...I haven't figured that our yet. I didn't bother with the Bluetooth yet. When I get around to speaking with PAC, I'll let everyone know what the resolution and proper set-up is...for thone that want to go the PAC route instead.
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