"I'm in the market for a new car, and that has me thinking towards multimedia connectivity. I don't want to rule out direct iPhone integration, but since the car is almost certainly going to be used, I'd like to think more along the lines of AUX-in and FM transmitter capability. I've also read that many of the new products can enable hands-free cellphone use, so this would be great to include. Any recommendations for a good in-car charging unit with these features?"