RNS-E add-on help needed

[71camaro]

Hey all, I have the RNS-E from an A4. I would like to add reversing camera and iPod integration and Bluetooth. I would like near-factory functionality, IE control iPod through RNS-E, contacts on RNS-E, auto-switch to reversing camera. I'm in the US so the car didn't originally include RNS-D and TV tuner, but I do have Audi Telematics (onstar). If anyone could point me to the hard-parts I'd need it would at least give me a start. Thanks.