So I had the Car Audio techs attempt to put the iSimple in my 2007 TL Type S, to find out that while living in alaska it will not even work....(display but no audio) due to the fact that i cant use some NAVI stuff and bla bla bla, im sure those of you can imagine my pain, how ever i did buy also the tv and nav to go which i was told is working but i must find a good dvd source since the iSimple cant help now. Any ideas?