Originally Posted by
oldzetec
I thought it was self-contained so just power (constant and ignition) and earth and possibly a lighting feed? A multimeter would tell you very quickly.
it is.
it's always on and there is five wires, so at a guess I would have thought there would be:
ground
LED positive (for the immobilizer/alarm led)
constant
Ignition (seems to turn backlight on after engine started)
illumination
however not sure of pinout. Might have to take dash out and look.