89 sierra 1500 sl wiring problem

batmanwb · 08-06-2008, 11:09 AM

1989 gmc sierra 1500 sl. im installin a new cd player but theres like 6 wires in my truck like and like 16 wires on my cd player. Shouldnt there be seperate wires for each speaker? can some one please help?Thanks.

03chevy · 08-06-2008, 11:22 AM

hope this helps

A B C D E F G H I J
K L M N
Typical GM Factory Pin What It Is In Dash Wire Color
A Left Front Spkr (-) Light Gray
B Left Front Spkr (+) Tan
C Right Front Spkr (-) Light Green
D Right Front Spkr (+) Dark Green
E Ground Wire Black
F Not Used
G Headlight Dimmer Wire Gray
H Power Antenna Turn On Pink (if available)
I +12 Volt Ignition Wire Yellow
J +12 Volt Battery Wire Orange
K Right Rear Spkr (-) Light Blue
L Right Rear Spkr (+) Dark Blue
M Left Rear Spkr (-) Yellow
N Left Rear Spkr (+) Brown
1989-1990 And Newer AS VIEWED FROM MATING END OF CONNECTOR
A B C D E F G H I J
K L M N
Typical GM Factory Pin What It Is In Dash Wire Color
A Left Front Spkr (-) Light Gray
B Left Front Spkr (+) Tan
C Right Front Spkr (-) Light Green
D Right Front Spkr (+) Dark Green
E Ground Wire Black
F Not Used
G Headlight Dimmer Wire Gray
H Power Antenna Turn On Pink (if available)
I +12 Volt Ignition Wire Yellow
J +12 Volt Battery Wire Orange
K Right Rear Spkr (-) Light Blue
L Right Rear Spkr (+) Dark Blue
M Left Rear Spkr (-) Yellow N Left Rear Spkr (+) Brown

batmanwb · 08-06-2008, 11:26 AM

yeah thanks for the help but my truck does not have all those wires it just has like 6 of those...when i took out the stock radio those 6 or so were the only ones soldered to the radio.

03chevy · 08-06-2008, 11:31 AM

how many speakers do you have in it and that are hooked up?

batmanwb · 08-06-2008, 11:33 AM

theres 4 speakers.there all stock.

junior3382 · 08-06-2008, 11:34 AM

Was the stock radio only an AM reciever by chance?

batmanwb · 08-06-2008, 11:43 AM

nope.it was fm/am.

junior3382 · 08-06-2008, 11:49 AM

Can you take a pic of the six wires you have access to and post it here so I can see? it does not make sense, there should be eight for speakers, and three for power and ground and signal minimum.... so i would need to see it.

batmanwb · 08-06-2008, 11:50 AM

i cant get the pictures right now. my trucks at my dads weld shop. I can tell you which ones they are though. Red yellow white orange black brown

junior3382 · 08-06-2008, 11:55 AM

those are the power control, ground and ignition signal wires......and just one set of speakers..... If I am thinking correctly... I will consult the chart 03 posted for us to use.... but you are missing some wires.... a lot of those stereos had TWO harness plugs that plugged into it, the second one controlling just speakers.... when you removed the factory unit, and assuming there was a second, did the second drop behind the dash out of sight?

08-06-2008, 11:09 AM	#1
batmanwb Full Member Join Date: Jul 2008 Location: NE Ohio Posts: 17	89 sierra 1500 sl wiring problem 1989 gmc sierra 1500 sl. im installin a new cd player but theres like 6 wires in my truck like and like 16 wires on my cd player. Shouldnt there be seperate wires for each speaker? can some one please help?Thanks. __________________ Own:1989 GMC Sierra 1500 SL. 4.3L V6

08-06-2008, 11:22 AM	#2
03chevy Senior Member Join Date: Dec 2006 Location: jax,fl Posts: 991	hope this helps A B C D E F G H I J K L M N Typical GM Factory Pin What It Is In Dash Wire Color A Left Front Spkr (-) Light Gray B Left Front Spkr (+) Tan C Right Front Spkr (-) Light Green D Right Front Spkr (+) Dark Green E Ground Wire Black F Not Used G Headlight Dimmer Wire Gray H Power Antenna Turn On Pink (if available) I +12 Volt Ignition Wire Yellow J +12 Volt Battery Wire Orange K Right Rear Spkr (-) Light Blue L Right Rear Spkr (+) Dark Blue M Left Rear Spkr (-) Yellow N Left Rear Spkr (+) Brown 1989-1990 And Newer AS VIEWED FROM MATING END OF CONNECTOR A B C D E F G H I J K L M N Typical GM Factory Pin What It Is In Dash Wire Color A Left Front Spkr (-) Light Gray B Left Front Spkr (+) Tan C Right Front Spkr (-) Light Green D Right Front Spkr (+) Dark Green E Ground Wire Black F Not Used G Headlight Dimmer Wire Gray H Power Antenna Turn On Pink (if available) I +12 Volt Ignition Wire Yellow J +12 Volt Battery Wire Orange K Right Rear Spkr (-) Light Blue L Right Rear Spkr (+) Dark Blue M Left Rear Spkr (-) Yellow N Left Rear Spkr (+) Brown __________________ A dirty mind is a terrible thing to waste!

08-06-2008, 11:26 AM	#3
batmanwb Full Member Join Date: Jul 2008 Location: NE Ohio Posts: 17	thanks yeah thanks for the help but my truck does not have all those wires it just has like 6 of those...when i took out the stock radio those 6 or so were the only ones soldered to the radio. __________________ Own:1989 GMC Sierra 1500 SL. 4.3L V6

08-06-2008, 11:31 AM	#4
03chevy Senior Member Join Date: Dec 2006 Location: jax,fl Posts: 991	how many speakers do you have in it and that are hooked up? __________________ A dirty mind is a terrible thing to waste!

08-06-2008, 11:33 AM	#5
batmanwb Full Member Join Date: Jul 2008 Location: NE Ohio Posts: 17	theres 4 speakers.there all stock. __________________ Own:1989 GMC Sierra 1500 SL. 4.3L V6

08-06-2008, 11:34 AM	#6
junior3382 Senior Member Join Date: Mar 2007 Location: I live in south central PA, but grew up in Maine Posts: 2,934	Was the stock radio only an AM reciever by chance? __________________ Lets get some mud on the tires...eh?!?!? OWN: 1998 Chevy Blazer ls 4x4 4.3l Vortec V6 1998 Mazda B3000 SE 4WD 3.0L V6 3" lift 31x10.50 Liberator A/T's

08-06-2008, 11:43 AM	#7
batmanwb Full Member Join Date: Jul 2008 Location: NE Ohio Posts: 17	nope.it was fm/am. __________________ Own:1989 GMC Sierra 1500 SL. 4.3L V6

08-06-2008, 11:49 AM	#8
junior3382 Senior Member Join Date: Mar 2007 Location: I live in south central PA, but grew up in Maine Posts: 2,934	Can you take a pic of the six wires you have access to and post it here so I can see? it does not make sense, there should be eight for speakers, and three for power and ground and signal minimum.... so i would need to see it. __________________ Lets get some mud on the tires...eh?!?!? OWN: 1998 Chevy Blazer ls 4x4 4.3l Vortec V6 1998 Mazda B3000 SE 4WD 3.0L V6 3" lift 31x10.50 Liberator A/T's

08-06-2008, 11:50 AM	#9
batmanwb Full Member Join Date: Jul 2008 Location: NE Ohio Posts: 17	i cant get the pictures right now. my trucks at my dads weld shop. I can tell you which ones they are though. Red yellow white orange black brown __________________ Own:1989 GMC Sierra 1500 SL. 4.3L V6

08-06-2008, 11:55 AM	#10
junior3382 Senior Member Join Date: Mar 2007 Location: I live in south central PA, but grew up in Maine Posts: 2,934	those are the power control, ground and ignition signal wires......and just one set of speakers..... If I am thinking correctly... I will consult the chart 03 posted for us to use.... but you are missing some wires.... a lot of those stereos had TWO harness plugs that plugged into it, the second one controlling just speakers.... when you removed the factory unit, and assuming there was a second, did the second drop behind the dash out of sight? __________________ Lets get some mud on the tires...eh?!?!? OWN: 1998 Chevy Blazer ls 4x4 4.3l Vortec V6 1998 Mazda B3000 SE 4WD 3.0L V6 3" lift 31x10.50 Liberator A/T's

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