Hello iGang. I'm a long-time Motorola user (largely due to friends/family working there). But I'm at the point of trying my first iPhone (4S) and converting from the original Motorola Droid. I'd like to know a few things from you guys about car integration with the 4S (and possibly previous iPhones). Seems as though the iPhone integrates well with some of the Pioneer double din DVD units, allowing visualization of navi apps ported to the DVD indash screen. The two in-dash units I'm looking at are the AVH-P4300DVD and the AVH-P3300BT. I'm wondering which iPhone users have integrated either the 4S or the 4 into one of these decks, and the overall success and impressions with pairing the devices in bluetooth mode. Secondly, I'd really like to know how well iTunes works on the road while driving (ie. consistency of signal, sound quality). Thirdly, if I have an earlier model iPod, can I use the iPod through the USB port with audio controls from the deck while simultaneously utilizing bluetooth from the iPhone 4s. Lastly, what would necessitate going from a 32Gb to a 64Gb iPhone 4S? Thanks for the input.