Does anyone know of where the actual taillight assemblies are grounded on the 69 ( RS ) I have a tailight ( both segments ) that burns dimmer than the alternate side and am assuming it's a ground issue. I looked at the schematic, they show a ground for the assembly but I haven't come across it.

I'm going way back here because it's been a while but I think there's one black wire coming from the tail light harness that screws to the trunk latch frame deal. Or somewhere very close to that.