Discussion/questions/updates about "Stock head unit information..." FAQ thread

SVXdc · 05-21-2006, 11:32 PM

This thread is for questions, suggestions, updates, etc. about the FAQ thread

Stock head unit information -- pin-outs, subwoofer, aux inputs, and more

Please post your questions here, not there!

If you have a question related to your own car, please be sure to post the model, year, and country where the car was originally sold.

.

ironfinger · 05-22-2006, 01:35 AM

sub signal out question. I have a US 04 forester.
I replaced the 6x9 stock sub in the trunk with an aftermarket 8". Will I get better bass quality if I connect my LOC to the signal from the sub out instead of the rear outs? If so, is it possible to bridge the LOC connection to the sub signal ? I ask because I plan to bridge the speaker wires at the amp?

thanks!

AKADriver · 06-08-2006, 11:05 PM

I thought I'd add something to the Aux-in discussions, particularly concerning the rectangular CD changer connector on some newer HUs. I saw a Subaru 6disc head unit on eBay while I was looking for cheap Mazda stock HUs and noticed that it had the exact same CD changer connector form factor.

'9?-'01 Mazdas have a CD changer connector with a very, very, very similar pinout. In fact, almost all the pins are the same - except for a few which are labeled as Not Connected on the Subaru.

Miata.net has a pinout. I'd post a link but your forum software won't let me. At any rate, go to Miata.net -> Garage -> Audio -> NB Stereo Interface Descriptions.

For the Mazda, all we have to do is set pin 6 (AUX CONTROL IN) to +5v. The display on the radio says "LINE" and the aux input is the only audio source.

I saw that Subaru claims pin F (pin 6) is not connected, but someone ought to confirm that. Mazda uses that pin because they had a factory optional add-on cassette player for these stereos that needed a simple trigger. The Mazda radios are also built by Matsushiiita/Panasonic, BTW.

It sounds like the line-in is always on for your stereos, so you might just try using the System Mute pin (pin L).

vroom...psshh · 07-08-2006, 02:59 AM

I have some questions, I own a 02 wrx wagon and I'm in socal, my first question is there a double din dvd player with the screen already that fits my car with no mods? second, if I do install a double din dvd player will I be able to use the oem subwoofer still? and for my last question, can I add an amplifier and a sub in the trunk with the oem sub still working??? thanks in advance.

02BlueSuperRoo · 07-08-2006, 03:09 AM

Yes, you can add an amp and sub with your stock sub still working. Yes, I've seen many people with double din dvd units right in dash. You will still be able to use the stock sub with that as well.

P.S. Better put on your flame suit with that user name

vroom...psshh · 07-08-2006, 03:12 AM

Quote:

Originally Posted by 02BlueSuperRoo

Yes, you can add an amp and sub with your stock sub still working. Yes, I've seen many people with double din dvd units right in dash. You will still be able to use the stock sub with that as well.

P.S. Better put on your flame suit with that user name

thanks for the heads up

wrxkid157 · 01-24-2009, 10:47 PM

i was wondering can you install a sub with the stock factory sterio in a 2002 wrx?

WejR20X · 07-25-2006, 12:20 PM

will i be able to power aftermarket door speakers with the stock HU? if so how much wattage can the stock HU support? i don't have enough money for an amp but i want better door speakers.

07Waggin · 09-21-2006, 08:32 AM

On this new USA '07 2.5i MT5 Wagon, I intend to replace the head unit with an Alpine 9856 or Pioneer 4800/5800, both of which are available with dedicated subwoofer output and control. I'm hoping that this approach will provide a stereo sub signal condensed safely into a mono output for the single factory OEM sub my car came with. I know bass is generally not panned strongly to the right or left channel, but in rare cases it is.

Does someone have a moment to answer these few questions?

1. Will a speaker-level output be sufficient to run the OEM Subwoofer?
2. Some owners with aftermarket head units that have no dedicated sub outputs just tap off of one of the main speaker outs to run the sub, is that still a sensible alternative?
3. The factory radio seems to tap off a front speaker output. Is that true? Would that be just one, left or right, rather than some combination of both? I think some combination might cause an inappropriate right/left signal cross.
4. One owner tapped off the front left for his subwoofer output. Was that a good choice?

Thank you for your time and expertise. This forum is great and I've already learned a lot from everyone!

07Waggin · 09-21-2006, 12:38 PM

Follow-up:
As it turns out, the factory radio powers the OEM sub off of the front speakers - both of them. So there must be an internal signal combiner that permits both the right and left channels to send bass to the sub without it crossing the channels.

kromHASaWRX · 09-21-2006, 12:49 PM

have a question where can i find the speed sensor wire ive been searchn all day and got nothing... HELP!

02BlueSuperRoo · 09-21-2006, 01:14 PM

Search is your friend n00blet
http://forums.nasioc.com/forums/sear...archid=5823445

ekw · 09-21-2006, 01:22 PM

probably not on the back of a factory stereo!!

make & model of your car might help someone answer you.
w/o this info it migh be impossible to answer.

kromHASaWRX · 09-22-2006, 12:08 AM

sorry 2006 WRX TR ive found a ton about 05 and older but nothing on 06... ive been searching all day !

rubrduk · 09-22-2006, 02:52 AM

doesn't the factory hu have an active eq that decreases bass as volume is increased...this automatically is bad - get a Fosgate 3sixty or something if you keep the factory hu to clean the curve

02BlueSuperRoo · 09-22-2006, 09:44 AM

^^ yes it does

07Waggin · 09-24-2006, 09:57 PM

Is it possible to power just the OEM sub driver with an aftermarket amp coming off an aftermarket head unit with sub pre-out and sub control by circumventing the OEM sub amp completely - basically, hand wiring directly to the OEM sub driver?

FXTMatt · 09-14-2007, 10:11 PM

Quote:

Originally Posted by 07Waggin

Is it possible to power just the OEM sub driver with an aftermarket amp coming off an aftermarket head unit with sub pre-out and sub control by circumventing the OEM sub amp completely - basically, hand wiring directly to the OEM sub driver?

Yes you could, but why? An aftermarket amp is going over power the stock "woofer" and you will probably kill it rather quickly.

blkscooby · 09-24-2006, 10:31 PM

How do you reset a stock HU in an '04 WRX? My battery was dead for a while and now the HU will not turn on at all no matter what I try.

necro-master · 09-25-2006, 03:51 PM

What dash kit can u use to add an aftermarket head unit? its a 06 WRX TR

blkscooby · 09-28-2006, 08:48 PM

Quote:

Originally Posted by blkscooby

How do you reset a stock HU in an '04 WRX? My battery was dead for a while and now the HU will not turn on at all no matter what I try.

Anyone?!?

LastResort · 09-25-2006, 06:46 PM

Dash Kits are Not Applicable to imprezas.

LastResort · 09-28-2006, 09:07 PM

I don't think there is a reset beyond removing power from them.

trooper1556 · 11-06-2006, 12:19 AM

Does anyone know if the 2006 factory harness will plug directly into a 2007 head unit?

Captain Ned · 11-06-2006, 11:02 AM

Is there any way to recalibrate the volume control in the 06/07 head unit? On my '02, a comfortable listening level for FM radio was a volume setting between 10 and 15. On my '07, it's closer to 30. Both units have the same 40-step volume scale.

05-21-2006, 11:32 PM	#1
SVXdc Scooby Specialist Member#: 25837 Join Date: Oct 2002 Chapter/Region: South East Location: Atlanta, GA Vehicle: 1996 SVX L AWD Laguna Blue Pearl	Discussion/questions/updates about "Stock head unit information..." FAQ thread This thread is for questions, suggestions, updates, etc. about the FAQ thread Stock head unit information -- pin-outs, subwoofer, aux inputs, and more Please post your questions here, not there! If you have a question related to your own car, please be sure to post the model, year, and country where the car was originally sold. . Last edited by SVXdc; 05-21-2006 at 11:57 PM.

09-21-2006, 08:32 AM	#9
07Waggin Scooby Newbie Member#: 126600 Join Date: Sep 2006	Sub connections On this new USA '07 2.5i MT5 Wagon, I intend to replace the head unit with an Alpine 9856 or Pioneer 4800/5800, both of which are available with dedicated subwoofer output and control. I'm hoping that this approach will provide a stereo sub signal condensed safely into a mono output for the single factory OEM sub my car came with. I know bass is generally not panned strongly to the right or left channel, but in rare cases it is. Does someone have a moment to answer these few questions? 1. Will a speaker-level output be sufficient to run the OEM Subwoofer? 2. Some owners with aftermarket head units that have no dedicated sub outputs just tap off of one of the main speaker outs to run the sub, is that still a sensible alternative? 3. The factory radio seems to tap off a front speaker output. Is that true? Would that be just one, left or right, rather than some combination of both? I think some combination might cause an inappropriate right/left signal cross. 4. One owner tapped off the front left for his subwoofer output. Was that a good choice? Thank you for your time and expertise. This forum is great and I've already learned a lot from everyone!

09-24-2006, 09:57 PM	#17
07Waggin Scooby Newbie Member#: 126600 Join Date: Sep 2006	Possible power amp circumvent Is it possible to power just the OEM sub driver with an aftermarket amp coming off an aftermarket head unit with sub pre-out and sub control by circumventing the OEM sub amp completely - basically, hand wiring directly to the OEM sub driver?

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05-22-2006, 01:35 AM	#2
ironfinger Scooby Newbie Member#: 64688 Join Date: Jun 2004 Vehicle: 04 Forester Java Black	sub signal out question. I have a US 04 forester. I replaced the 6x9 stock sub in the trunk with an aftermarket 8". Will I get better bass quality if I connect my LOC to the signal from the sub out instead of the rear outs? If so, is it possible to bridge the LOC connection to the sub signal ? I ask because I plan to bridge the speaker wires at the amp? thanks!

06-08-2006, 11:05 PM	#3
AKADriver Scooby Newbie Member#: 37298 Join Date: May 2003 Chapter/Region: MAIC Vehicle: 2009 Forester X Camellia Red	I thought I'd add something to the Aux-in discussions, particularly concerning the rectangular CD changer connector on some newer HUs. I saw a Subaru 6disc head unit on eBay while I was looking for cheap Mazda stock HUs and noticed that it had the exact same CD changer connector form factor. '9?-'01 Mazdas have a CD changer connector with a very, very, very similar pinout. In fact, almost all the pins are the same - except for a few which are labeled as Not Connected on the Subaru. Miata.net has a pinout. I'd post a link but your forum software won't let me. At any rate, go to Miata.net -> Garage -> Audio -> NB Stereo Interface Descriptions. For the Mazda, all we have to do is set pin 6 (AUX CONTROL IN) to +5v. The display on the radio says "LINE" and the aux input is the only audio source. I saw that Subaru claims pin F (pin 6) is not connected, but someone ought to confirm that. Mazda uses that pin because they had a factory optional add-on cassette player for these stereos that needed a simple trigger. The Mazda radios are also built by Matsushiiita/Panasonic, BTW. It sounds like the line-in is always on for your stereos, so you might just try using the System Mute pin (pin L).

07-08-2006, 02:59 AM	#4
vroom...psshh Scooby Specialist Member#: 118351 Join Date: Jun 2006 Chapter/Region: SCIC Location: Grand Theft Auto, CA. Vehicle: 2002 wrx wagon WRB	I have some questions, I own a 02 wrx wagon and I'm in socal, my first question is there a double din dvd player with the screen already that fits my car with no mods? second, if I do install a double din dvd player will I be able to use the oem subwoofer still? and for my last question, can I add an amplifier and a sub in the trunk with the oem sub still working??? thanks in advance.

07-08-2006, 03:09 AM	#5
02BlueSuperRoo Scooby Specialist Member#: 78290 Join Date: Dec 2004 Chapter/Region: MWSOC Location: Milwaukee, WI Vehicle: 2011 WRX 5-door SSM	Yes, you can add an amp and sub with your stock sub still working. Yes, I've seen many people with double din dvd units right in dash. You will still be able to use the stock sub with that as well. P.S. Better put on your flame suit with that user name

01-24-2009, 10:47 PM	#7
wrxkid157 Scooby Specialist Member#: 201046 Join Date: Jan 2009 Chapter/Region: NWIC Location: Vancouver, Wa Vehicle: 2004 WRX Silver	i was wondering can you install a sub with the stock factory sterio in a 2002 wrx?

07-25-2006, 12:20 PM	#8
WejR20X Scooby Specialist Member#: 58101 Join Date: Mar 2004 Chapter/Region: Tri-State Location: MI/NJ Vehicle: 2002 WRX PSM	will i be able to power aftermarket door speakers with the stock HU? if so how much wattage can the stock HU support? i don't have enough money for an amp but i want better door speakers.

09-21-2006, 12:38 PM	#10
07Waggin Scooby Newbie Member#: 126600 Join Date: Sep 2006	Follow-up: As it turns out, the factory radio powers the OEM sub off of the front speakers - both of them. So there must be an internal signal combiner that permits both the right and left channels to send bass to the sub without it crossing the channels.

09-21-2006, 12:49 PM	#11
kromHASaWRX Scooby Specialist Member#: 125126 Join Date: Sep 2006 Chapter/Region: MAIC Location: Baltimore Vehicle: 2016 M3 05 Saab 9-2x	have a question where can i find the speed sensor wire ive been searchn all day and got nothing... HELP!

09-21-2006, 01:14 PM	#12
02BlueSuperRoo Scooby Specialist Member#: 78290 Join Date: Dec 2004 Chapter/Region: MWSOC Location: Milwaukee, WI Vehicle: 2011 WRX 5-door SSM	Search is your friend n00blet http://forums.nasioc.com/forums/sear...archid=5823445

09-21-2006, 01:22 PM	#13
ekw Scooby Specialist Member#: 92141 Join Date: Jul 2005 Chapter/Region: Tri-State Location: in a guardrail near you Vehicle: 2014 GT-NC-PRHT Zeal Red.	probably not on the back of a factory stereo!! make & model of your car might help someone answer you. w/o this info it migh be impossible to answer.

09-22-2006, 12:08 AM	#14
kromHASaWRX Scooby Specialist Member#: 125126 Join Date: Sep 2006 Chapter/Region: MAIC Location: Baltimore Vehicle: 2016 M3 05 Saab 9-2x	sorry 2006 WRX TR ive found a ton about 05 and older but nothing on 06... ive been searching all day !

09-22-2006, 02:52 AM	#15
rubrduk Scooby Specialist Member#: 126587 Join Date: Sep 2006 Chapter/Region: SCIC Location: sunlandia Vehicle: 16 Silverado	doesn't the factory hu have an active eq that decreases bass as volume is increased...this automatically is bad - get a Fosgate 3sixty or something if you keep the factory hu to clean the curve

09-22-2006, 09:44 AM	#16
02BlueSuperRoo Scooby Specialist Member#: 78290 Join Date: Dec 2004 Chapter/Region: MWSOC Location: Milwaukee, WI Vehicle: 2011 WRX 5-door SSM	^^ yes it does

09-24-2006, 10:31 PM	#19
blkscooby Scooby Specialist Member#: 44422 Join Date: Sep 2003 Chapter/Region: SWIC Location: Gilbert, AZ Vehicle: 2009 G8 GT Cammed, sprayed, stalled	How do you reset a stock HU in an '04 WRX? My battery was dead for a while and now the HU will not turn on at all no matter what I try.

09-25-2006, 03:51 PM	#20
necro-master Scooby Newbie Member#: 127094 Join Date: Sep 2006 Chapter/Region: MWSOC Location: IL Vehicle: 06 WRX TR Blue Pearl	What dash kit can u use to add an aftermarket head unit? its a 06 WRX TR

09-25-2006, 06:46 PM	#22
LastResort Scooby Guru Member#: 99289 Join Date: Oct 2005	Dash Kits are Not Applicable to imprezas.

09-28-2006, 09:07 PM	#23
LastResort Scooby Guru Member#: 99289 Join Date: Oct 2005	I don't think there is a reset beyond removing power from them.

11-06-2006, 12:19 AM	#24
trooper1556 Scooby Newbie Member#: 128474 Join Date: Oct 2006 Location: Ski Town USA - Steamboat Vehicle: 2006 WRX sport wagon black	Does anyone know if the 2006 factory harness will plug directly into a 2007 head unit?

11-06-2006, 11:02 AM	#25
Captain Ned Scooby Newbie Member#: 36144 Join Date: May 2003 Chapter/Region: NESIC Location: Vermont, USA Vehicle: 2010 Legacy2.5GT Ltd Graphite Gray Metallic	Is there any way to recalibrate the volume control in the 06/07 head unit? On my '02, a comfortable listening level for FM radio was a volume setting between 10 and 15. On my '07, it's closer to 30. Both units have the same 40-step volume scale.