Originally posted by strictlyspeakin
The only common point between the trunk lid courtesy light
and the license plate lights (left and right) is the ground. They share the same ground point (right tail light ground).

Test for ground on these lines and it's likely missing. I'm puzzled by the fact that you didn't see 12V+ during your test. Did you go directly to a known good ground during your test? Where were you testing for it?
Replaced the cracked section of the wire. STILL no lights!!!

I tested for 12V+ at the lights. I did use a known good ground. Used the Amp ground point.

Where is the ground located on the right tail light ground? Which wire?
Is anything else connected to this ground? (like the right tail light?)