Hi all,

Anybody care to suggest the best non-proprietary in-car GPS solution that can handle an external video camera input from a reversing camera?

I've seen a couple of Navman units that have AV-IN (wired) eg MY350LTM, and the older MY90XLT 

Do TomTom have any units with a wired or wireless AV-IN option? Or other brands? (From what I've read/researched, I'm probably leaning towards a Tomtom, but I've not seen anything in their range that would fit my bill)

Another option for AV-IN, are there any units available that can take a 'wireless' camera as AV source (either bluetooth, or Wifi?)

Ideally my solution needs to include:-

1) GPS with touch screen and/or voice recognition, Live Traffic info, with lifetime free and regularly renewed map updates
2) Must connect to iPhone 4 and up for handsfree phone use.
3) Must take external remote video source (reversing camera), preferably with auto switching to view camera when camera turns on (ie when connected to the car's reversing light power). Preferably wireless to avoid needing to run AV cable through the car, as mine doesn't have any pre-installed.

Thanks in advance for suggestions. (Note: Car manufacturer's proprietary units are not in my budget)