2000+ Head Unit harness - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Audio (and aftermarket electronics) This is your place for alarms, remote starters, to brag about your system, exaggerate your db levels, or simply ask questions for stock or aftermarket audio. No Flames! (except from roasted amps)

Reply
 
 
 
Thread Tools Search this Thread
Old 05-09-2010, 01:06 AM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Mar 2010
Location: Merriam, KS
Posts: 38
Thanks: 0
Thanked 2 Times in 1 Post
Brent is on a distinguished road
Question 2000+ Head Unit harness

Well, I've looked at several existing threads on this, but I'm still not sure which harness to go with for my headunit. I've got an aftermarket headunit from my previous car that I want to put in the Bonneville, I could care less about onstar, but I would like to retain the factory chimes, if I have to install an extra speaker for that, then so be it. What I'd like to do is change the headunit and leave the rest factory for now until I upgrade the speakers and amps. I've got the Monsoon stereo and if I have to do it all at once then I will, I just want to know what I'm getting into from the start. Any help is appreciated.

GMOS-09 amplifier interface harness. Retains chimes and accessory. Works with or without onstar and provides navigation wires.
http://retailer2.installationexcelle...hicleid=202415

GMOS-05 non - amplified interface harness. Retains chimes and accessory. Works with or without onstar and provides navigation wires.
http://retailer2.installationexcelle...hicleid=202415

GMOS-04 non - amplified, non - onstar interface harness. Retains chimes and accessory through an on board speaker.
http://retailer2.installationexcelle...hicleid=202415

Brent
Brent is offline   Reply With Quote
Old 05-09-2010, 08:47 PM   #2
Senior Member
Posts like a Northstar
 
Jeep2Bonny's Avatar
 
Join Date: Mar 2003
Location: Fairhaven,Mass
Posts: 632
Thanks: 0
Thanked 0 Times in 0 Posts
Jeep2Bonny is on a distinguished road
Default

PM SAMZGXP. he did a swap and tested different modules. He knows which one is best
Jeep2Bonny is offline   Reply With Quote
Old 05-09-2010, 09:52 PM   #3
Senior Member
True Car Nut
 
MouSe's Avatar
 
Join Date: Oct 2009
Location: Atlanta
Posts: 5,988
Thanked 2 Times in 2 Posts
MouSe is on a distinguished road
Default

When I bought my new stereo I think they shipped the top harness with it, even though I didn't need it.
MouSe is offline   Reply With Quote
Old 06-02-2010, 06:12 PM   #4
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Mar 2010
Location: Merriam, KS
Posts: 38
Thanks: 0
Thanked 2 Times in 1 Post
Brent is on a distinguished road
Default

Well, I decided to go with the GMOS-09, but I've been pretty disapointed. I hook it up and everything powers up, but it doesn't power down and I have no sound and no chimes. I haven't troubleshot the sound problem yet, but I have found that I'm not getting a switched 12V turn on. Instead I get 10V all the time which is turning on the headunit. I'm almost ready to chuck the think out a window at this point, because I finally got the time to work on this and it'* only caused me problems. If anyone has any ideas about why this isn't working, please let me know. My next step is to contact the Ebay seller about getting a replacement or a refund.

Here are the connections I have made.


Note that key is not in the ignition and the door is open. There shouldn't be any voltage on this red wire.


Brent

Last edited by Brent; 06-02-2010 at 06:13 PM.
Brent is offline   Reply With Quote
Old 06-02-2010, 08:04 PM   #5
Senior Member
True Car Nut
 
SAMzGXP's Avatar
 
Join Date: Mar 2009
Location: Fort crack homie
Posts: 2,894
Thanks: 0
Thanked 0 Times in 0 Posts
SAMzGXP is on a distinguished road
Default

Hey Brent
you have 2 problems, one can be fixed and the other cant

#1- no sound.
the GMOS-09 was made for Bose not Monsoon, and both amps are different, so to get the GMOS-09 working you have to cut one of the wires going to amp remote signal wire. there are three wires connceted togeher (blue wires Pin A3 A6 and B3), you have to cut the wire going to pin A6 which is Radio On Signal, not sure what that is exactly but i think its the signal that tells the radio to be quiet so onstar can kick in. so cut the wire circled in red in the picture below. it worked for me on 2 GMOS-09 harness and one PAC harness so it should work for you
Name:  DSC01537.jpg
Views: 53
Size:  31.0 KB


thanks to ddalder, i have this
Quote:
Originally Posted by ddalder
Okay, here’* the information on the radio DNL connector (w/ RPO UZ8 – Monsoon). This should apply from 2002-05.

A1 – PPL – Class 2 Serial Data (Primary)
A2 – PPL – Class 2 Serial Data (Primary)
A3 – PNK – 14V Reference
A4 – RED – FM Composite Signal
A5 – Not Used
A6 – PNK – Radio On Signal
A7 – LT BLU/BLK – Cellular Telephone Voice Low Reference
A8 – DK BLU – Cellular Telephone Voice Signal
A9 – BLK/WHT – Audio Common
A10 – BRN/WHT – Left Audio Signal (+), *-Band Receiver and/or CDX
A11 – DK GRN/WHT – Right Audio Signal (+), *-Band Receiver and/or CDX
A12 – BRN/WHT – LR Low Level Audio Signal (+)
A13 – BRN – LR Low Level Audio Signal (-)
A14 – LT GRN – RF Low Level Audio Signal (-)
A15 – LT GRN/BLK – RF Low Level Audio Signal (+)
A16 – BLK/WHT – Ground
B1 – ORN – Battery Positive Voltage (Live at all times)
B2 – ORN – Battery Positive Voltage (Live at all times)
B3 – WHT – Antenna Enable Signal
B4 – YEL – Backlight Lamps Control
B5 – BLK – Ground
B6 – PPL – Amplifier Present Signal
B7 – Not Used
B8 – Not Used
B9 – Not Used
B10 – Not Used
B11 – Bare – Ground (Audio Drain Wire)
B12 – TAN – LF Low Level Audio Signal (+)
B13 – DK GRN – LF Low Level Audio Signal (-)
B14 – BLK – RR Low Level Audio Signal (-)
B15 – DK BLU – RR Low Level Audio Signal (+)
B16 – BLK/WHT – Ground

#2- harness not shutting off
i had the same problem 2 weeks after having my pioneer HU, i have no idea what went wrong when i was trying by pass it and it wont shut off no more, i measured it like you did and had the exact same readings. i took it back to the shop got a new one and everything worked fine.
so im pretty sure your harness is fried, get a new one. its covered under warranty

i know it must be frustrating right now but good things take time, get the new harness and you will now be dissapointed, i wasnt on this forum when i did mine i have like 3 threads and each was like 6 pages long on the other forum pontiac bonneville club.com and i had the same problems as you now, took me over 3 months to get it all together and working cause no one had it changed before i guess lol
but it was all worth it at the end


you also have to cut a little bit out of the dash cavity to fit it in, be careful not to cut any wires, they are really tight in there
you can use whatever you want from tools such as a dremel, saw and more
i used a drill
Name:  IMG00237-20090526-1941.jpg
Views: 66
Size:  133.4 KB
Name:  IMG00238-20090526-2023.jpg
Views: 38
Size:  109.6 KB

my old pioneer HU

Name:  IMG00250-20090527-1707.jpg
Views: 37
Size:  91.0 KB
SAMzGXP is offline   Reply With Quote
Old 06-02-2010, 10:38 PM   #6
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Mar 2010
Location: Merriam, KS
Posts: 38
Thanks: 0
Thanked 2 Times in 1 Post
Brent is on a distinguished road
Default

Thanks Sam, I was a little pissed when I wrote that up earlier, but I'll see if I can get a replacement. Looks like you took out a little more of the back of the dash then I did. I don't think I'll cut that wire just yet, I'll wait until I can at least get it to turn on and off right. I've got the factory stereo back in now, so I'm not driving in silence till I can get this replaced. Thanks for the pinout diagram on that plug from ddalder, I saved that for future use.



Brent

Last edited by Brent; 06-02-2010 at 10:40 PM.
Brent is offline   Reply With Quote
Old 06-02-2010, 10:58 PM   #7
Senior Member
True Car Nut
 
SAMzGXP's Avatar
 
Join Date: Mar 2009
Location: Fort crack homie
Posts: 2,894
Thanks: 0
Thanked 0 Times in 0 Posts
SAMzGXP is on a distinguished road
Default

yeah i took out a little more than you because i have a double din, im sure yours is a single din, and not to forget mine had GPS and bluetooth so i need more space in the back for all the wires
SAMzGXP is offline   Reply With Quote
Old 06-02-2010, 11:05 PM   #8
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Mar 2010
Location: Merriam, KS
Posts: 38
Thanks: 0
Thanked 2 Times in 1 Post
Brent is on a distinguished road
Default

You're right, I'm going to use an Alpine CDA-105, it'* killing me not to be able to plug in my iphone.

Thanks,
Brent
Brent is offline   Reply With Quote
Old 06-02-2010, 11:06 PM   #9
Senior Member
True Car Nut
 
SAMzGXP's Avatar
 
Join Date: Mar 2009
Location: Fort crack homie
Posts: 2,894
Thanks: 0
Thanked 0 Times in 0 Posts
SAMzGXP is on a distinguished road
Default

yeah that does suck, the one i have is iphone compatable its nice i can even receive calls while listening to music and it even charges it.

but i dont plug in anymore because all my music is on my 8GB SD card

but if you need more help please let me know
SAMzGXP is offline   Reply With Quote
Old 06-18-2010, 06:46 PM   #10
Junior Member
Posts like a Ricer Type-R
 
stefon_l_smith's Avatar
 
Join Date: May 2010
Location: Indiana
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
stefon_l_smith is on a distinguished road
Default

Brent, I was wondering did you cut that little brown wire that is on the 16 pin connector... According to the picture it doesn't look like you did.... If you didn't cut that wire that is why you don't have any audio. I found that out the hardway....
stefon_l_smith is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Head Unit Install on 2000 Bonneville HowY Audio (and aftermarket electronics) 37 05-27-2013 01:05 PM
aftermarket head unit wiring harness black_friday Audio (and aftermarket electronics) 45 01-18-2007 07:06 PM
2000 stock head unit nate_boothman Audio (and aftermarket electronics) 1 07-10-2006 11:18 PM
2000 head unit install with bose system nate_boothman Audio (and aftermarket electronics) 3 02-27-2006 01:08 PM
2000 ssei head unit gsamosuk Audio (and aftermarket electronics) 1 04-22-2003 09:51 PM


Tags
after market harness, aftermarket head unit, audio, head unit, power, radio, wiring

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:38 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.