yeah I saw a thin walled socket is needed to get into the space of the solenoid.
I got a cheap headlight polishing kit while ordering some tools and decided to try it on the rear lights in the trunk, those seem to be of an inferior quality to the ones on the outside which are not faded at all. overall the process was pretty easy since I took out the units, the result is a big improvement though after 12 hours the UV coat was still sticky... hope it's dry when I get home today. Then to see if it holds up