A few wiring questions

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Hi Guys

I have an 89 K2500 HD standard cab Silverado, 350, Auto, 8 lug. With a flatbed.

There is a wire cable running to the back of the bed. It is 4 conductors. Tail, L & R turn and a mystery wire. It is not ground and is not hot for a backup light.

What is it for?

I need it to be the backup light. Where under the dash is the backup light wire/switch?




I would like a Tackomader. Is there a different guage cluster I can use with a tack? What model and year?


Thanks

Larry
 

thinger2

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If you have the cargo bed light, check for power with that switched on.
If not, check with your dome light on.
My 94 has a wire that doesnt show on the diagram but is tapped into for canopy/topper/ camper lights
 

AK49BWL

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Typical trailer wiring provisions are

Red = Hot
Brown = Parklights
Dark Green = Right Turn/Brake Lights
Yellow = Left Turn/Brake Lights
White = Ground to frame
Light Green = Reverse Signal from transmission switch
Dark Blue = Trailer Brake Control
 
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