Chances are this was answered already;
1. Looking to confirm they come on when in reverse (if AUX switch is on)
2. Are these able to be powered on, without being in reverse, special harness?
100%, just because one is in the range of 'Possibly Affected' doesn't mean you are... 42 complains of how many production vehicles??? less than 1%
Bigger question, how are these vehicles that are developing this issue, being driven?