Speaker wiring help
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WannabaTY
New member
Re: Speaker wiring help
This might help you out a little
+12V DC Battery(Constant) Orange Or 10 amp in-line fuse & 30 amp circuit braker Horn/DM 20 amp Fuse block
Switched Accessory Yellow Radio 15 amp Fuse block
Ground Black
Illumination Gray
Dimmer Brown At radio pin C6, if equipped
Left Front + Tan
Left Front - Gray
Right Front + Dark green
Right Front - Light green
Left Rear + Brown
Left Rear - Yellow
Right Rear + Dark blue
Right Rear - Light blue
Don
This might help you out a little
+12V DC Battery(Constant) Orange Or 10 amp in-line fuse & 30 amp circuit braker Horn/DM 20 amp Fuse block
Switched Accessory Yellow Radio 15 amp Fuse block
Ground Black
Illumination Gray
Dimmer Brown At radio pin C6, if equipped
Left Front + Tan
Left Front - Gray
Right Front + Dark green
Right Front - Light green
Left Rear + Brown
Left Rear - Yellow
Right Rear + Dark blue
Right Rear - Light blue
Don
WannabaTY
New member
Re: Speaker wiring help
Here is the diagram for the 91 Syclone....
+12V DC Battery(Constant) Orange Horn/DM 20 amp Fuse block
Switched Accessory Yellow Radio 15 amp Fuse block
Ground Black
Illumination Gray & brown
Left Front + Tan
Left Front - Gray
Right Front + Dark green
Right Front - Light green
Tan is + and any other color is -
Here is the diagram for the 91 Syclone....
+12V DC Battery(Constant) Orange Horn/DM 20 amp Fuse block
Switched Accessory Yellow Radio 15 amp Fuse block
Ground Black
Illumination Gray & brown
Left Front + Tan
Left Front - Gray
Right Front + Dark green
Right Front - Light green
Tan is + and any other color is -
hatrik8
Donating Member
Re: Speaker wiring help
Digging up an old post here.
On sytyauthority they have the opposite for speaker colors than what WannabaTY posted above:
Right Front + light green
Right Front - dark green
Left front + grey
Left Front - tan
I compared my aftermarket wire harness to the connections on the stock harness end and verified this. So the aftermarket harness would have to be incorrect for the above connections to be wrong. Just thought I would add some more confusion to the speaker wiring. I do think this is correct though...
Digging up an old post here.
On sytyauthority they have the opposite for speaker colors than what WannabaTY posted above:
Right Front + light green
Right Front - dark green
Left front + grey
Left Front - tan
I compared my aftermarket wire harness to the connections on the stock harness end and verified this. So the aftermarket harness would have to be incorrect for the above connections to be wrong. Just thought I would add some more confusion to the speaker wiring. I do think this is correct though...
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Re: Speaker wiring help
Rule of thumb for GM is DARK COLORS are + and the light colors are -
Rule of thumb for GM is DARK COLORS are + and the light colors are -
Re: Speaker wiring help
I looked it up in an old GM install manual from back inthe day when I did stereos and alarms.
That means:
RF = LT GRN +
RF = DK GRN -
LF = TAN +
LF = GRAY -
RR = DK BLUE +
RR = LT BLUE -
LR = BROWN +
LR = YELLOW -
YES.. very true and I stand corrected.Turboz said:
I looked it up in an old GM install manual from back inthe day when I did stereos and alarms.
That means:
RF = LT GRN +
RF = DK GRN -
LF = TAN +
LF = GRAY -
RR = DK BLUE +
RR = LT BLUE -
LR = BROWN +
LR = YELLOW -
Re: Speaker wiring help
About the color combo post I did above, that came right out of a GM install manual. Why not just take the speaker out and look to see which one is connected to + unless... you don't have factory speakers.
Shoot me an Email if you still need help and I'll go take my factory radio and speaker out to check which is which. I am 99.9% positive that what I posted is correct though.
Not sure if this helps any but....
Hmmm... got me on the double wires. Is your truck a '93? I can take the radio out of my TY and see if it has the double wires as well. That plug looks like it might be for the glovebox light or possibly the ashtray light...I think thereis a light there anyway.hatrik8 said:What about red wire? Nobody mentioned that. You can see it in this picture next to yellow and grey. Also I noticed there are two grey wires and two tan wires on the stock plug. wtf
About the color combo post I did above, that came right out of a GM install manual. Why not just take the speaker out and look to see which one is connected to + unless... you don't have factory speakers.
Shoot me an Email if you still need help and I'll go take my factory radio and speaker out to check which is which. I am 99.9% positive that what I posted is correct though.
Not sure if this helps any but....
Turboz
NASTE
Re: Speaker wiring help
orang is going to be the constanat power and the brown i believe is for illumination.hatrik8 said:What about red wire? Nobody mentioned that. You can see it in this picture next to yellow and grey. Also I noticed there are two grey wires and two tan wires on the stock plug. wtf :rant:
hatrik8
Donating Member
Re: Speaker wiring help
I have a 91 syclone. I am putting new speakers in so I could just check that when I replace them. I didn't think of that.
Last night a checked the red (pink?) wire with a meter. The voltage does not change with ignition on or off. My guess is it is for a power antenna, but who knows.
Others I checked with a meter are orange is definitely 12V all the time. Yellow is 12V when igniton is on. Brown is supposedly illumination so maybe the grey (next to yellow 12V) is also illumination or dimmer.
SonomaGTlover said:
I have a 91 syclone. I am putting new speakers in so I could just check that when I replace them. I didn't think of that.
Last night a checked the red (pink?) wire with a meter. The voltage does not change with ignition on or off. My guess is it is for a power antenna, but who knows.
Others I checked with a meter are orange is definitely 12V all the time. Yellow is 12V when igniton is on. Brown is supposedly illumination so maybe the grey (next to yellow 12V) is also illumination or dimmer.
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Re: Speaker wiring help
Here...I found this today.
http://www.autotoys.com/New_Tech/Wire_codes/GM_GMC_GEO_RADIO/gm_gmc_geo_radio.htm
Here...I found this today.
http://www.autotoys.com/New_Tech/Wire_codes/GM_GMC_GEO_RADIO/gm_gmc_geo_radio.htm
hatrik8
Donating Member
Re: Speaker wiring help
I'm at the point where nothing can be trusted. The only consistency is the rear speakers and the +12V, ground, and accessory. I am just going to check my front speakers when I pull them out. Then I'll go with dimmer is grey and illumination is brown.
SonomaGTlover said:
I'm at the point where nothing can be trusted. The only consistency is the rear speakers and the +12V, ground, and accessory. I am just going to check my front speakers when I pull them out. Then I'll go with dimmer is grey and illumination is brown.
hatrik8
Donating Member
Re: Speaker wiring help
Grey and brown both are 0V with lights off and 10V or 12V with lights on. They also fluctuate with the dimmer going up or down so I'm just using the grey as dimmer and leaving brown disconnected.
I also pulled my front speakers and the stock speakers are marked A and B not + and -. I wrote it down what color was connected to what terminal on the speaker, but it doesn't really matter because who knows if A is + or - so I won't even bother causing more confusion. I'm just going to rewire the fronts for the new speakers anyway so I can get it right. I only need a couple feet of wire.
My new Polk db461p fronts barely fit. I have to trim the right side opening just a bit to get them in because the plate hits the lip of the opening.
Grey and brown both are 0V with lights off and 10V or 12V with lights on. They also fluctuate with the dimmer going up or down so I'm just using the grey as dimmer and leaving brown disconnected.
I also pulled my front speakers and the stock speakers are marked A and B not + and -. I wrote it down what color was connected to what terminal on the speaker, but it doesn't really matter because who knows if A is + or - so I won't even bother causing more confusion. I'm just going to rewire the fronts for the new speakers anyway so I can get it right. I only need a couple feet of wire.
My new Polk db461p fronts barely fit. I have to trim the right side opening just a bit to get them in because the plate hits the lip of the opening.