bluegig
You should already have voice recognition so I would guess it just gives you backup camera 
it would have to be really cheap

Remove the spaces between the www and the dot
http://www .navtv.com/manuals/ALLGIG/BlueGIG.pdf
You need to check out the NAV-TV site they have the freegig that states inmotion video then they talk about the bluegig for voice recognition bluetooth and reverse camera.
There site is not very user friendly
There site is not very user friendly


