I am buying a Avic-D3 for my z this week and I dont have alot of time and wanted to See who would reccommend me or do an installation for me and bypass the system for me so it plays while driving. I am a newby and just bought my Z Jan 8th so bare with me if this isnt where I am supposed to post this ,if its not please show me the way. Also before I buy this unit let me know a reason not to buy this versus any other unit, Im basically just looking for a Navigation/Dvd player with Ipod functionality . I am getting this for 450 plus shipping so let me know guys....