Hi bullnose friends

I have this new (to me) radio.

Can you helpe to decode the color wires to make it match with my existing wiring .

This is the cassette radio with their wires and what I found on Viky (1982 F100).

 

The yellow is key power, the blue is power to, but the orange what it is?

And the left cables are for the Speaker?

Thanks for the help

 

Cables to the left are indeed speakers. Orange wire is instrument (dash) lights.

 

Wires on the left are speaker.

Yellow/black hash = keyed, fused power
Light blue/red = dimmable dash backlighting
Orange/blue dots = sends signal to power antenna (if installed), Do NOT connect it to anything

 

I'm shooting from the hip again.

Chris is quite right, LB/R is the dimmer.

I'm not familiar with any power antenna option in our trucks though. Haynes manual shows OR/BK wire used for "LCD power". Comes from main light switch and receives power from "I" or "IGN" terminals of the light switch via "DN". "I" terminal is same as dimmer LB/R.

 

Yeah, we never had power antennae in the trucks. But some of the sedans had that, and the same radios were used everywhere - just not wired up in vehicles that didn't have that feature.

All of my factory manuals & wiring diagrams are packed up in storage containers atm, and most of the images I had put out on the 'net over the years are no longer available for one reason or another.