FP - The "automatic up" windows will never happen because of product liability litigation. The first time some moron got his <insert body part here> caught in the window while it was going up he/she would be on the phone with a lawyer before they even called the doctor!

The reverse sensor is already a genuine Mopar accessory. Chick this link:

http://www.wyckoffchryslerparts.com/padise.html

BTW, Wyckoff Chrysler is a good source for parts/accessories. I ordered my cargo cover from them and had a good experience.