There are higher-end solutions from various mobile electronics manufacturers such as Kenwood, Alpine, Pioneer, and Clarion (just to name a few). Simply choose an AV receiver or CD Receiver with iPod or USB connectivity. The best option in this situation would be to have complete control of your iPod via the multimedia source unit (like the one you see here from Kenwood). A separate plug, located in a storage compartment, glove box, under the seat, center console (depending on where you have it installed) is all you will need to accomplish this. Once plugged in, your iPod will also charge. A double-DIN source unit (like this one from Kenwood) has all the bells and whistles but it's not exactly a stealthy option.