First let's start with the RB3 navi:the installation was very-very easy,you just unplug the old cd player and plug the new navi.the navi antenna had to go on top of the dash but that is quite easy also
i had some minor problems though...i have under my rear seat an amp
allthough there was no problem with the previous cd-player, in the RB3 when i installed it i couldn't hear the front speakers even with the fader all the way in the front.this was fixed(from my electrician somehow!!) but now i can hear from time to time some statics coming from the rear speakers,even when the volume is completely shut!?!what i'm thinking is that either the amp needs someting to adjust according to the RB3 or the 0n-off(volume) switch of the RB3 is malfunctionong.any ideas are much appreciated!!