The VAIS SL2Vi is now working well in my TCH 2007. The video looks and sounds great.
The problem I had getting the video to work was the PKB (parking brake) signal to the NAV unit has to be ON. My car did not even have a parking brake wire going to the NAV screen. If you go to the NAV screen signal for this (go to diagnostic menu, and go to the screen on the NAV unit that tells you if PKB, REV, etc is on or off; see
http://www.greenhybrid.com/discuss/f...en-menu-11376/ for how to get there) you will see that PKB is OFF regardless of whether the real parking brake is on or off.
The PKB sensor is at pin 1 of the 5 connector grey plug that also carries the speed sensor wire on pin 3 (purple wire) and the reverse sensor wire on pin 5. There is also a black wire on pin 2 (not sure what this is for). This 5 pin grey connector is called R12 in the diagram at
http://www.greenhybrid.com/discuss/f...ictures-11672/ and once I put in a pin to connect it to ground by bolting the wire from pin 1 that I inserted to the NAV body, the PKB signal on the NAV on the diagnostic screen went to ON. Once this happened, the video worked great.
So far, the VAIS SL2Vi is working great for both audio and video in TCH 2007 I have. SOund and picture is outstanding. Now for some test drives to see if it will still be working when the car is moving.
Joe