Behold, the little red wagon. It will treat you well. I've had it since 2007 and never had an issue, no matter how long or short a trip it's been. I originally planned on selling it before deciding to give RelayRides a go, so the car has been freshly detailed, and smells like new. You can plug in your iPhone (or anything with an aux jack) and the stereo system ain't bad--chargers are included for both Android and iPhone. Give it a go.
Note: long term rentals are preferable! Please let me know if interested, thanks.