GM Delco Bose Wiring Diagram
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URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=112910
Printed Date: May 01, 2024 at 10:40 PM
Topic: GM Delco Bose Wiring Diagram
Posted By: geuhl
Subject: GM Delco Bose Wiring Diagram
Date Posted: April 04, 2009 at 2:46 PM
Why is it so hard to find wiring diagrams for gm delco bose systems? I have been looking all over the internet for a month and all I can find is your standard wiring for gm cars, yellow is power orange is memory and so on, why can't I find any diagrams for the amp wiring, my bose amp has an eight pin plug and a 24 pin and I have no idea how to hook it up, does anyone? I have a 1994 Lumina Euro that came with a standard am/fm cassette. A bose system was a option and I bought one on ebay. It is a bose silver series head unit a u85 bose amp and bose speakers, however I did not get the wiring harness with it. Can anyone help me out?
Replies:
Posted By: tommy...
Date Posted: May 17, 2009 at 11:18 AM
Probably because nobody does that...! What did you pay for that...?
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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: geuhl
Date Posted: May 20, 2009 at 7:47 AM
With everything I paid around $250.00. I would still like to find out how to wire it.
Posted By: i am an idiot
Date Posted: May 20, 2009 at 10:43 AM
If you are willing to do a little footwork with a meter, I can at least help you identify the speaker outputs and power and ground wires.
Posted By: geuhl
Date Posted: May 20, 2009 at 3:08 PM
I don't know which wires are the input to the amp from the head unit. Power to the amp is easy, it's a big fat orange wire and a black wire. The inputs and outputs are the same size. I can't believe that there is not a schematic out there somewhere.
Posted By: tommy...
Date Posted: May 20, 2009 at 9:08 PM
Ok i'll see if there is anything i can find for you...How old is the stuff your putting in...from 1994 too (what year-make- and model the bose equipment is out of) ...? That was kinda why i said nobody does that...Probably could of found some aftermarket used equipment around same money...Is it for keeping it "factory" the reason? ------------- M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: lspker
Date Posted: May 20, 2009 at 9:15 PM
you can find the wiring in the factory service mannual for that car. Maybe Mitchell too
Posted By: geuhl
Date Posted: May 21, 2009 at 12:56 PM
The head unit is out of a 1994 lumina. The amp has a date of 6/21/00. The numbers on the amp are 10440936 2W A00 U85 Amp Assy,3630G,WPONT if that will help. I am pretty sure it was a 6speaker system because I got all the speakers with it. one time I was on a Pontiac Forum site that had the diagram, But I cant find it. The Lumina is nice and I want to keep it original, and the factory radios work well. I can install a jack in it for ipod,mp3,ect. Thanks for the replies.
Posted By: i am an idiot
Date Posted: May 21, 2009 at 3:49 PM
So does this mean we are not going to use the meter to find the speaker wires. After we identify the speaker wires, the inputs will not be that hard to figure out.
Posted By: geuhl
Date Posted: May 21, 2009 at 5:22 PM
I can do the meter test but I don't understand how we can identify the inputs to the amp. Thanks
Posted By: i am an idiot
Date Posted: May 21, 2009 at 5:37 PM
Remove the cover of the amp. Where the pins of the plug hit the circuit board, there are going to be 6 traces that go directly to the output devices. There may be 3 or 6 devices. Some of the traces may be on the underside of the board. That is where the meter may come into play. If you can not see the traces of follow them to the output chips, set your meter to the diode test or continuity setting. Whichever setting is quicker at making the meter beep is goung to be your best bet. Touch and hold the leads together and notice how long you have to keep them together before you hear the beep. Place one lead in an unidentified pin of the amp, now touch the other lead to the pins of each output device, you have to leave it on each pin long enough for it to start beeping. There should be 2 wires that go to each output if there are 6 devices. 4 to each if there are 3 devices. Once you find the 12 wires that go to the outputs, draw or take a pic of the plug and label the wires that go to the outputs. I will instruct on how to find the inputs when I get home tonight.
Posted By: tommy...
Date Posted: May 21, 2009 at 6:32 PM
Do you know what kind of car the bose amp came out of...? I found a few pages like this...Year-Make-Model would help...Im guessing you dont know about the amp other then date stamped on it...Maybe there was something in original sale post...?  | Pin | General Application | Application/Color |
|---|
| '99-'01 Miata Bose | '02-'03 Miata Bose | '04+ Miata Bose |
|---|
| A | Switched Power (to Audio Relay) | Switched Power (to Audio Relay) | Switched Power (to Audio Relay) | Switched Power (to Audio Relay) | | Blue/ Orange | Blue/ Orange? | | | B | N/C | N/C | N/C | N/C | | C | Left Speaker- | Left Speaker- | Left Speaker- | Left Speaker- | | Yellow/ Red | | | | D | Left Speaker+ | Left Speaker+ | Left Speaker+ | Left Speaker+ | | Yellow/ Black | | | | F | Right Speaker- | Right Speaker- | Right Speaker- | Right Speaker- | | Yellow/ Green | | | | H | Right Speaker+ | Right Speaker+ | Right Speaker+ | Right Speaker+ | | Green | | | | I | Left Shield/ Ground | Left Shield/ Ground | Left Shield/ Ground | Left Shield/ Ground | | BLACK/ Orange | BLACK/ Orange? | | | J | Right Shield/ Ground/ Input Shield | Right Shield/ Ground/ Input Shield | Right Shield/ Ground/ Input Shield | Right Shield/ Ground/ Input Shield | | BLACK/ Orange | BLACK/ Orange? | | | K | Left Input+ | Left Input+ | Left Input+ | Left Input+ | | Red | Red | | | L | Left Input- | Left Input- | Left Input- | Left Input- | | White | White | | | M | Right Input+ | Right Input+ | Right Input+ | Right Input+ | | Yellow | Yellow | | | N | Right Input- | Right Input- | Right Input- | Right Input- | | Orange | Orange | |
------------- M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: tommy...
Date Posted: May 21, 2009 at 6:51 PM
Another bose page I found and I promise i wont put up another untill i get an answer on year,make,model. How do I bypass the Bose amplifier?
Simply connect the wires before and after the amplifier using the following diagram (courtesy of Legend tuner). Crimp caps will work fine for making the connections, although soldering looks cleaner (I'll do that when I get around to it).
 
Harness A comes from the headunit.
A1 ----- Orange -------- Left Rear Speaker (+) ----- Connect to B2
A2 ----- Green --------- Left Rear Speaker (-) ------ Connect to B5
A3 ----- Yellow --------- Right Rear Speaker (+) ---- Connect to B1
A4 ----- Red ----------- Right Rear Speaker (-) ----- Connect to B3
A5 ----- Blue ----------- Right Front Speaker (+) --- Connect to C1
A6 ----- Brown --------- Right Front Speaker (-) ---- Connect to C4
A7 ----- White --------- Left Front Speaker (+) ----- Connect to C3
A8 ----- Black ---------- Left Front Speaker (-) ----- Connect to C7
A9-A15 ----------------- Not Used
A16 --- Yellow/White --- Turn on ------------------- Terminate
Harness B goes to the rear speakers.
B1 ----- RED / Yellow ---- Right Rear Speaker (+)
B2 ----- Blue / YELLOW ---- Left Rear Speaker (+)
B3 ----- Brown --------- Right Rear Speaker (-)
B4 --------------------- Not Used
B5 ----- Gray ---------- Left Rear Speaker (-)
Harness C goes to the front speakers, power, and ground.
C1 ----- Red ------------ Right Front Speaker (+)
C2 ---------------------- Not Used
C3 ----- Blue ------------ Left Front Speaker (+)
C4 ----- RED / White ------ Right Front Speaker (-)
C5 ----- WHITE/ Blue ----- Constant Power
C6 ----- Black ----------- Ground
C7 ----- Blue/Orange ---- Left Front Speaker (-)
-------------
M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: geuhl
Date Posted: May 21, 2009 at 6:57 PM
It is out of a 2000 Pontiac. I'm not sure if it was out of a Grand Am or a Grand Prix.
Posted By: tommy...
Date Posted: May 21, 2009 at 8:28 PM
It looks like this install manual list the pinout for 01-03 bose in pontiacs...not sure it it will help but found the pdf here... https://www.pac-audio.com/instructions/os-1bose.pdf OS-1 BOSE General Motors OnStar® Bose® Interface
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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: geuhl
Date Posted: May 21, 2009 at 9:04 PM
Thats not the right amp.Thanks anyway
Posted By: geuhl
Date Posted: May 22, 2009 at 8:54 PM
Hey guys, thanks for the help. I cant take the amp apart, I don't see how it comes apart. It has two boards that are attached to both the bottom and top so the cover won't just come off. There is one just like I have on eBay # 220403808469. That's what the hookup looks like. Anybody have a clue?
Posted By: i am an idiot
Date Posted: May 23, 2009 at 4:26 AM
A T-15 Torx driver available at any auto parts store, only have to remove 2 screws. Then on the edge of the bottom cover there are 2 places that you can insert a screwdriver, gently pry the cover up a bit. There are ribbon cables that attach the bottom board to the top board, so do not just rip the cover off once you get it open a bit.
Posted By: geuhl
Date Posted: May 23, 2009 at 9:24 AM
There are three output chips but there are no part numbers on them, so I can't look them up to see what leg does what. The 8 pin connector has the big orange wire and the big black wire which is power. It also has a yellow, a brown, green w/ black stripe, a dark blue w/ white stripe, light blue w/ black stripe, and a dark green. That plug is obviously for the power and controls. The other connector has 24 pins but only has 16 wires coming from it.
Posted By: geuhl
Date Posted: May 23, 2009 at 9:52 AM
Six of the wires coming from the 24 pin connector, are 16 gauge which is probably the output wires to the speakers. The other ten are 18 gauge wires, probably input wires from the head unit . I don't know which wire is what. I know the standard output color for GM, but these wires aren't following that code.
Posted By: i am an idiot
Date Posted: May 28, 2009 at 9:45 PM
i am an idiot wrote:
Remove the cover of the amp. Where the pins of the plug hit the circuit board, there are going to be 6 traces that go directly to the output devices. There may be 3 or 6 devices. Some of the traces may be on the underside of the board. That is where the meter may come into play. If you can not see the traces of follow them to the output chips, set your meter to the diode test or continuity setting. Whichever setting is quicker at making the meter beep is goung to be your best bet. Touch and hold the leads together and notice how long you have to keep them together before you hear the beep. Place one lead in an unidentified pin of the amp, now touch the other lead to the pins of each output device, you have to leave it on each pin long enough for it to start beeping. There should be 2 wires that go to each output if there are 6 devices. 4 to each if there are 3 devices. Once you find the 12 wires that go to the outputs, draw or take a pic of the plug and label the wires that go to the outputs. I will instruct on how to find the inputs when I get home tonight.
In the first sentence, it should have read 12 traces.
Posted By: i am an idiot
Date Posted: May 30, 2009 at 7:52 PM
When testing as per the Private Message, there will be 12 wires that read very close to the same. These 12 wires are the speaker wires. There should be 6 pins that read very near the same. These will be the input wires. There should be one pin that is unique in it's reading. This is the Remote Turn on wire.
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