is there any way to successfully use spotify with a car stereo via USB? It plays fine as long as I don't touch the controls on the steering wheel, but next/previous song kills spotify and starts up the iPod app. It works great with bluetooth, but I would like to charge aswell (and connecting via USB deactivates A2DP :( ).
Is there way to intercept the signals of the Dock Connector and rewire them to Spotify? My iPhone is jailbroken, so any hints on that matter would also be greatly appreciated.