My friend Larry referred me to this great idea on Instructables from user Rosenberger31… a DIY usb power outlet for your car. There’s no need to repeat the details here as Instructables stands alone as one of the best DIY sites out there. I will say this though, I’d love to see this in a Lotus Exige S 260 instead of a Prius.
A USB power outlet on it’s own may not make music but it will make it a lot easier to hook up a few of these and pipe them into your auxilary in.