To remove that fugly dried white wax residue from plastic trim you will need:
dish soap
water
old toothbrush
Dip the tooth brush in the dish soap and water solution and scrub lightly on the trim. Rinse with a clean water saturated cloth or cotton ball and done. Don't go crazy cause the soap/water solution will remove the wax where ever it's applied.

 

I use a thin piece of plastic held against the paint to keep the soap or black out from removing the wax from the painted surfaces, then clean the residue off the trim.

I read somewhere using one of those large tapered-end pencil erasers will do the job.
Haven't tried it yet though.

 

Look up ammo nyc and chemical guys both on youtube youll see a lot of detail tricks.

 

Turbo,

I've been using Meguiars Super Degreaser and Meguiars APC (all-purpose cleaner) w/ fantastic results in the engine bay for several years now.

Neither will damage the plastics or the aluminum.

Very effective and can't say enough positive things about them.

Somewhat pricey upfront, but, they're dilutable to the desired ratio.