New Retrosounds radio won't even turn on? (also what is the grey wire?)

[Challis350]

Hey guys

I've got a 1986 GMC C2500 and i've got the corresponding Retrosounds radio. All the speakers are in and i've attached the relevant wires to the speaker harness provided.

My problem is with the power harness.

On the retrosounds power harness I have black (ground), Yellow (12v constant) and red (12v accessory). The old radio wires, however, are yellow, black and grey. I've attached black to black, yellow to yellow (which lightly sparked!), and then grey to red, but the radio won't turn on.

Am i missing something obvious here? Pic below:

You must be registered for see images attach

 

[Matt69olds]

Gray is dash lamps. If the new radio has a wire labeled illumination or dimmer, that’s the wire you want to trigger the radio to dim the display.

This is a pinout for a stock GM radio. Black is ground. Orange is constant power. Yellow is ignition power. Brown is taillight (used on some radios for bscklighting)

Hope that helps.

 

[SquareRoot]

Use a multimeter it at least a test light and confirm you have power and ground. Don't assume the colors mean anything. If you shorted the wire as you mentioned "it sparked", check the fuse, it may be fried.

 

[Challis350]

Thanks all.

The orange wire from the cigarette lighter worked perfectly when connected, and yes, I did blow a fuse in the process.

Case closed.

 

[Finkaire]

I used the plug and play adapter from Crutchfield with no problem using the stock plug and speakers, like it a lot

 

[TPISly-C10]

Hey guys

I've got a 1986 GMC C2500 and i've got the corresponding Retrosounds radio. All the speakers are in and i've attached the relevant wires to the speaker harness provided.

My problem is with the power harness.

On the retrosounds power harness I have black (ground), Yellow (12v constant) and red (12v accessory). The old radio wires, however, are yellow, black and grey. I've attached black to black, yellow to yellow (which lightly sparked!), and then grey to red, but the radio won't turn on.

Am i missing something obvious here? Pic below:

You must be registered for see images attach

black is GND-yellow ignition power and grey dimer light....you need orange constant positive to have it work

 

[Iamsoocluess]

Thanks all.

The orange wire from the cigarette lighter worked perfectly when connected, and yes, I did blow a fuse in the process.

Case closed.

To clarify black to black, red to yellow and yellow to orange cigarette wire?

 

[Randy and Easton]

@Iamsoocluess what are you asking? I’m confused? If it’s stereo power we answered you in another post you made.

Yellow from truck is power, black from truck is ground and grey from truck is the back lighting for the radio.