Way too much thought going on here...cars are 20yrs old almost...they've all had wax on all the trim. Pretty much any product will remove the wax, hell even hot water and a rag will do it once the surface temp is down. What works ideal is a plastic cleaner followed by a plastic polish, also back to black...yes it needs to be applied bi weekly, but no plasitc pc should sit unprotected in the enviorment or it will be damaged. I recently have taken to hitting the ENTIRE car with turtle wax ice once a week...every exterior surface, takes literally 15 minutes to do and the results are....well people compliment the car often...so the results are excellent. Don't use peanut butter...cleanup will be a huge pain. I will say that if you use a plastic cleaner and spend some signigicant time cleaning..I mean over and over untill the rag is no longer dirty after wiped, then use a plastic polish to resore any dulling effect, followed by a couple coats of decent wax...the plastic will look better than it has in yrs...guaranteed.
