*Chikselog: im up with Ess' suggestion regarding using Megs APC, i've also had great results with it and what matters to me more is less headache. But for those parts, yeah you just clean the area with APC and then apply dressing, but take not that not all parts are made of rubber or plastic, some trims can also be painted matte black so be careful, do a magnet test first. Also APC's can really strip off waxes so be sure to treat area's touched with APC.