Beautiful write up, thanks for it. I'm not bothered with the plastic so I don't think I will wrap mine.
For the radar detector I hard wired mine into the fuse box and velcroed it above the steering wheel. Easy to silence false signals there, and the detector has a good view of the road.
My TomTom died, so now I use my iPhone and GPSDrive, which gives voice commands over the radio (interrupts the music).