bought a new cd radio for the truck, removed factory one, only to find out all the wiring is grey. anyone know which pin is what?
wiring woes! 2005 freightliner columbia
in mine all the wires were yellow. you can do one of the fallowing to hook it up.
A: Buy a test light and find a hot and ground. (Little thing that looks like a screw driver with an ice pick point and a wire with alligator clip at the end of the handle.)
B: Take a wild Guess and hope you are right.
C: Buy or barrow a multimeter from a cb shop.
In mine there was a plug that could hold 4 wires but was only using 2 wires. The one in the middle was the ground the one on the outer edge was the acc. I went with option B as I was sitting in a traffic jam and had a handful of spare fuses. But either way option A or C is your safest bet to do it right.
If you go with option A
Just make sure the key is on when trying to find the acc wire. The light should come on when hooked up right. Then when you turn the key off the light should go out.
you could also go to freightliner & get a wiring diagram. this will tell you what wire is hot,ground,speakers,etc.look on the top or bottom of the old radio there might be a diagram on there.freightliner might even have a harness you can hook to the new radio & will plug into the trk.
Each grey wire has some identifiers on it. It will say something like GRD (for ground) 95AL- and 95AL+ for rear speakers. 95FL- and 95FL+ for front speakers and so on.. xxxB is for power and xxxA is for ACC/Ignition. Try to match those up with your new cd player.
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