the wires are broken in the trunk where the harness runs down the left side of the trunk lid hinge. you need to remove the left side trunk panel and the cover on the trunk lid assembly/ hinge. your 3rd brake light probably doesnt work and also your tag bulbs too.
Certified MB Master 15yrs
Valentine 1 Radar and Laser Locator 3.893
Galaxy DX 95T Export radio
Mobius Dash Cam