My Brother put a set of 2006 tail lights in his 2002.
His brake lights do not work when pedal pressed.
I know the top is the brake light on the 2002 and the bottom is the brake light on the 2006, what needs to be done to be functional?
Thank you for all of your help/suggestions

 

Your easiest solution is to use the wiring harness from the 02 on the 06 Tails. Odds are the wiring harnesses are too different to interchange.

If you want to mod the tail lights to use both top and bottom, check out this guide:
https://montecarloforum.com/forum/fw...ght-mod-41832/