lamp power
Powering the backup lights isn't a problem at all. All I did on my M996 was to install another neutral start switch in the shifter housing that was actuated by the shift mechanism. I took power from the shifter legend lights. They are either bright or dim depending on the position of the master light switch and the reason I did that was in case I didn't want them coming on I just leave the dash lights off.
I powered my license plate light by tapping into the wire that takes power to the trailer recepticle for taillights on the trailer. Pick any wire numbered 24, they go to pins A, C, and H.
Kurt
KG6KMJ