I noticed something unusual about how this works.... any similar observations?
The only wire modified is the emergency brake wire is grounded.
For some reason, the only way this works out without doing anything to any speed sensor wires is as follows:
The brake wire grounding must occur only "after" the initial car startup and clearance of the "safety warning" screen by clicking "Agree". Then one grounds out the emergency brake. On the car I saw this was done with a switch under the dash that was within reach. Then, the "disc" button was pressed to bring up the DVD menu.
Now the unusual part:
On some occassions the dvd worked immediately and continued to work regardless of motion. On other occassions, the DVD would not work initially, but then would begin to work after several minutes so long as the DVD was selected on the DVD/NAV screen (only audio would play during this time). All of a sudden the DVD would display up front and then would continue to work normally the rest of the time.
Conclusions / Guesses? My initial thought is that there "is" a speed sensor wire that is also needed to be "cut" but perhaps it is "loose" on this vehicle and comes loose at some point while driving? OR, perhaps the safety aspect of the motion sensor software has a time limit on it and after a certain number of minutes does not continue checking?
I've seen articles on other websites showing that the speed sensor wire is green/white on 2003 toyota/lexus vehicles and is violet/white on 2004 vehicles. Anyone have any further info on which wire controls the speed sensor for these cars? Also, on the Sienna (vs. Lexus) the DVD/Nav control box is located easy to reach under the passenger seat, rather than in the trunk or behind the dash. Anyone have any pictures or info on which wire would be the one?
Any other thoughts on this unusual success story (intermittant)?