I have been looking at the Pioneer AVIC D3 for the past week. Does anyone have this unit ? Price is right @$888.00 for a NAV/DVD/CD touch screen but I have heard there kinda a pain to use, having to swap out discs if you want to use the NAV. My question is that if you add a disc changer can you just leave the Nav disc in the head unit and still listen to music as the nav is opperating ? This stock stereo sucks and I want something with pretty much everything for under a grand and this AVIC D3 fits in the price range. Thanks