Thanks Mackel, for the detailed info on how to access the light in the roadster. I just spoke with him , Dave , in Tennessee. I am doing the SRT coupe first however and it is currently in a disassembled state. He said not to be fooled by a ground at the chassis, but to make sure I have 12v AND ground at the unit and reminded me NOT to apply 12 v to the LED's themselves. He said the coupe 3rd brake light rarely fails in the coupes like the limited models where only half of the light illuminates. I understand they both receive their voltages from a lighting control module? Is there a test for this component and where it might be located? (Old timers are laughing...been there done that, theyre saying). Peace and thanks again, Mackel, your detailed instructions might be sticky worthy.