IM trying to repair some bad wiring under my dash from a previous owners alarm install. There is two red 10 guage wires, a pink wire, and an orange wire, all in the same area. The car is a 90 IROC they are all under the dash on the drivers side by the fuse box.

I have a good idea what the others power, didnt find anything in my manual about the white wire? I found a white wire for the tach but this wire seems to be to heavy a wire to supply just the tach.

Thanks,
Mike

 

Pink - Ignition 12v
Orange - Accessories or Ignition #2

There shouldn't be a white 10-gauge wire, if there is it must have been added in. The only white wires I can think of that are down there are tach (18 gauge), door pin switch (16 gauge).