You can buy a power adapter for the flashlight outlet in the glove compartment. That outlet is switched w/ the ignition vs cigarette lighter outlet always hot.I use this gadget offered by Belkin. It's simple, out of the way and operates on FM frequency. I'd love to have an integrated solution, but this will do for now. Unfortunately, now I cannot charge my phone unless there is another outlet somewhere?
What exactly is the problem you're having?