The USB part is only there to power the device. If you've got a flash drive plugged in already then you could use a cigarette lighter to USB adapter.If I got that too I would need a hub, I already have a 32gb mini stick with all my music on. Only downside is a big muckle list to scroll through.
Richard, that's an OBD2 dongle.... this thread is about playing music over Bluetooth?I can confirm this one works too:
Only £6.45 including postage