Got some facelift LED brake lights. Rear off-side went on sweet, with some minor Stanley knife action to the connector. All tested, worked good. Thanks David for help with this.
However, the rear driver-side is being a PITA. Got two of the three bolts out no problem, middle one just turns forever. Applied some minor force and pop off the brake light comes, however the bolt and a small bit of plastic still in place. Tried some mole grips, more turning, pulling - won't shift. I can undo the rear off-side and go back to bulbs, so it's ok for Monday. But I'm loathe to give up and fail.
I'm hopeful I can shift this bolt tomorrow and finish the LED install, what I am hoping for is one of you can advise how to deal with this damn bolt and get it out. Tell me there is a magic trick for a bolt that turns forever, please.....