I have a 2010 RAV4 and I have tolerated having most of the Navigation system features defeated by a motion sense line long enough. Can anyone tell where the best place to attack this issue is? I ***-u-me all I need to do is either cut, or cut and bias, a motion sense line going to the Navigation computer - the question is: where best to do this. I don't even know where the Nav computer is. Is it totally contained in the fold out head? Or is it somewhere more accessible somewhere else? Any specifics would be appreciated. Thanks.