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Old 05-08-2013, 12:47 AM   #1
ghostdog
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Default Upgrade to aftermarket headunit?

What all will be needed to upgrade to aftermarket headunit?

I got the pioneer avh3500hbs double din,
13 Sti sedan
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Old 05-08-2013, 01:05 AM   #2
Awesomesocks
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I just bought that unit too! I also got the AVIC-U250 nav add on. Really excited to install it, but I'm probably having a shop install it for me.

Are you going to do it yourself?
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Old 05-08-2013, 01:19 AM   #3
ghostdog
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Yeah ima do it myself, I got the iPhone cable, and e brake cable so I can watch movies without e brake lol... I also have a 4 channel alpine amp, 2 sets of alpine type R components(trying figure where put tweets in rear) mono Amp, and 2 alpine type R 12 subs. Also ton dynamat haha

I don't like paying people to do stuff /=
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Old 05-08-2013, 11:03 AM   #4
CRAZYHAWK
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Old 05-08-2013, 12:10 PM   #5
prescottn6ft7
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You'll need the harness to plug into the OEM, aside from that, the AVH head units you'll need a relay wired in to bypass the e-brake saftey screen.... what did you buy?

Wiring harness http://www.caraudiogiants.com/metra-..._store=default

AVH parking break bypass relay http://compare.ebay.com/like/1109545...Types&var=sbar

As for installing your tweeters in the rear you really don't need components in the rear. I would discourage any drilling or cutting into the door panels. Did you buy speaker spacers for the front? Not sure what size drivers you are installing, but a lot of them need a spacer to refrain from hitting the windows when they are rolled down.

Dynomatting your rear trunk wall, and the back dash, under the rear seats, and the door panels is an exquisite idea. I've done a few Subaru's not mine and my friends cars like this, and with just 2 alpine 10's and an alpine 500 RMS amp my car blows away just about anything I pull up next to. Dynomat is amazing.
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Old 05-08-2013, 03:01 PM   #6
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Yeah I got both those things

Nd I already have the alpine type R components 6.5 from before.
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Old 05-08-2013, 03:10 PM   #7
ghostdog
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Also what about spacers ??
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Old 05-08-2013, 05:13 PM   #8
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Save yourself a lot of trouble and go to ae64.com. He is a genius with subaru wiring and is a vendor on this forum.
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Old 05-08-2013, 05:20 PM   #9
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Quote:
Originally Posted by ghostdog View Post
Also what about spacers ??
http://www.subaruaudio.net/subaru-speaker-spacers/
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Old 05-08-2013, 05:44 PM   #10
prescottn6ft7
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Gotta have spacers for the doors or the windows will hit the magnets to the woofers on the speakers.
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Old 05-08-2013, 09:01 PM   #11
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Quote:
Originally Posted by prescottn6ft7 View Post
You'll need the harness to plug into the OEM, aside from that, the AVH head units you'll need a relay wired in to bypass the e-brake saftey screen.... what did you buy?

Wiring harness [link to 71-7552 REVERSE harness]
That is the WRONG harness. A reverse harness fits the socket on the rear of the OEM HU. You need the opposite gender (what I call a "forward" harness), to fit the car's factory radio harness -- Metra 70-7552 or equivalent. Except read addl. comment, below.

Quote:
AVH parking break bypass relay [eBay link]
Those micro bypass devices are good. They are not simply a relay. Be sure to find one that the vendor says works with your specific aftermarket HU model -- there are a few different kinds, and some HUs require specific timing or even an extra lead for a foot brake input.

For 2011-up Impreza/WRX/STI, 2011-up Forester, and 2012-up Crosstrek (all of those which had a non-nav OEM HU), see this page for things you'll need. 2014 Forester is now like 2012-up Impreza (new dash design, dropped CAN bus, has VSS on the 20-pin harness, etc.).
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Old 05-08-2013, 09:50 PM   #12
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I got my harness off clutchfield
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Old 05-08-2013, 10:22 PM   #13
SVXdc
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That's fine if you don't plan to retain your audio steering wheel controls (SWCs). Otherwise, you might want an upgrade.
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Old 05-08-2013, 10:25 PM   #14
ghostdog
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Wait, your wiring harness can also keep factory steering wheel controls?? How much?? I know the one I got from clutchfield don't, but every adapter I found to keep them controls was like $60 I didn't find them worth it...

I think I have everything I need tho.

Pioneer avh-x3500bhs
Wiring harness
Parking brake override bypass (for my headunit)
Metra double din kit
iPod to USB cable

Last edited by ghostdog; 05-08-2013 at 10:39 PM.
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Old 05-09-2013, 12:14 AM   #15
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If you want to be able to use your SWC, you should order SVCdc's harness as well as the ASWC-1 from him.

Read the link he posted above to create a part list.

I am installing an AVH X8500BHS in my '13 WRX and ordered the fwd harness, ASWC-1, aux adapter, and hirose connecter from him a few days ago. Everything came in today and is ready to go.
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Old 05-09-2013, 02:13 PM   #16
18abVFL
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www.sonicelectronix.com will give you (for free) everything you need to install your HU
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Old 05-09-2013, 03:57 PM   #17
ghostdog
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Your link doesn't work
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Old 05-09-2013, 04:43 PM   #18
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http://www.ae64.com

Buy SVXdc's harnesses, they're some of the only ones with a proper connection for illumination.
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Old 06-30-2013, 10:13 AM   #19
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Is there a good reason to use the Parking Break Bypass? I just took the green parking brake wire from the head-unit and grounded it to a ground bolt. No wire tapping or bypass needed.
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Old 06-30-2013, 01:22 PM   #20
klarowe
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That method does not work properly on newer pioneer head units. If they see a ground on the wire prior to start-up (or during start-up) it will require the ground to be disconnected and reconnected. The bypass 'modules' use the remote turn-on to delay the ground signal on the parking brake wire.
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Old 06-30-2013, 06:20 PM   #21
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Quote:
Originally Posted by klarowe View Post
That method does not work properly on newer pioneer head units. If they see a ground on the wire prior to start-up (or during start-up) it will require the ground to be disconnected and reconnected. The bypass 'modules' use the remote turn-on to delay the ground signal on the parking brake wire.
Good to know, thanks. I bought the Pioneer AVH-X2500BT and it doesn't appear to have that issue.
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Old 06-30-2013, 07:52 PM   #22
klarowe
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Oh sorry... I didn't realize you weren't the OP.
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Old 07-04-2013, 11:50 PM   #23
SVXdc
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Quote:
Originally Posted by preston_nfs View Post
Is there a good reason to use the Parking Break Bypass? I just took the green parking brake wire from the head-unit and grounded it to a ground bolt. No wire tapping or bypass needed.
Quote:
Originally Posted by klarowe View Post
That method does not work properly on newer pioneer head units. If they see a ground on the wire prior to start-up (or during start-up) it will require the ground to be disconnected and reconnected. The bypass 'modules' use the remote turn-on to delay the ground signal on the parking brake wire.
Some recent HUs now require multiple pulses and/or more exact timing. So some of the "micro bypass" devices being sold are engineered to satisfy that. If your HU needs one, you should always make sure that you choose one that the vendor says works with your particular HU model.

People have said that only US HU models require the delay pulse (or multiple pulses on some HUs). Supposedly, with HUs sold outside the US you can simply ground the HU's parking brake lead. I would have thought Canada would require it too [the delayed or multiple pulses], but perhaps not.

Last edited by SVXdc; 07-11-2013 at 08:34 PM.
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Old 07-11-2013, 01:03 PM   #24
Crazy-47
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I just ordered a JVC NSX1 from crutchfield yesterday and it included the wiring harness and also ordered the Axxess ASWC-1 with a parking brake bypass. Will the "free" harness not work correctly with the ASWC or the headunit?
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Old 07-11-2013, 08:40 PM   #25
SVXdc
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Quote:
Originally Posted by Crazy-47 View Post
I just ordered a JVC NSX1 from crutchfield yesterday and it included the wiring harness and also ordered the Axxess ASWC-1 with a parking brake bypass. Will the "free" harness not work correctly with the ASWC or the headunit?
The "free" harness from Crutchfield will include all of the power and speaker wires that you need to install the HU itself, but does not include the SWC wires. Metra's ASWC instructions tell you to splice into your factory SWC wires (on the factory radio harness). My harness is identical to Metra's, except mine includes the extra SWC wires.
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