Alex thanks for the pin a9 info - took a look at it today and from a quick glance seems like a pain to get the ICM out, but I'll check it out some more over the winter months and like you said I could just use the wire that I ran to the tail light assembly.
Today we put the Red Sled into hibernation.
Originally Posted by
ala_xfire
Pin A9 of the Illumination Control Module ( the headlight switch assembly ) goes to pin 1 of the mirror connector.
It supplies +12v when in reverse, so I suppose you could use the +12v from the backup light to do the same thing, since you already have the wire run.
Me, I didn't bother since I seldom drive at night, and then, not in reverse.