Arizona Auto Works in Peoria, AZ provided and installed a NAV-TV backup camera system in my 2012 Audi A4 Avant May 30th. They did an excellent job and were pleasant throughout the experience.

The system consist of two major components along with cables and connectors.
The Interface is NTV-KIT 187
The Camera is NTV-KIT228


This image on the MMI screen was displayed at 9:30 PM as I backed out of my garage:



Here is the contact information at Nav-TV:
NAV-TV

100 Nw 11th St, Ste A, Boca Raton, FL 33432
(866) 477-3336
(561) 955-9770

Hours:
Monday through Friday: 09:00 AM - 6:00 PM
Saturday and Sunday: Closed


The Nav-TV website lists the interface @ $699 and the camera @$399. I ordered through my installer and got an excellent discount from the MSRP.

I had a similar Nav-TV system in my previous Lexus and it was a high quality set of devices. This new one for my Audi is even better.

I suggest that anyone interested phone Nav-TV to obtain pricing and a list of local vendors. Be prepared to respond to their questions about your particular car.

It is my personal opinion that the price might seem high but this is a high-end system every bit equal to or better than the OEM systems found in other cars.