RangerG, I experienced taillight side markers illuminating with no rear taillight, two months ago when wiring mine.
Only one wire enters the taillight assembly for both the rear and side bulbs. What’s with that?!
Thank you for verifying I'm not nuts.
Not being able to find the regular AMP Reasearch steps anywhere, I purchased the AMP Vision from CARID.com two weeks ago for $1770. They tack on a $35 delivery fee, but will wave it if you ask them to.