Is there a dock that you can put the phone in and it will charge the phone and also have an audio output on the dock? I don't know if this is possible but if there is one I would like to get it. That way I could connect (and leave connected) some speakers (or the car's aux input) to an audio output on the dock. So I could just drop the phone into the dock and it would charge plus the audio would already be hooked up.
If this isn't possible then I guess just a good desktop and car dock suggestion for cheap (that charge the phone) and will fit with a kickstand case.