... for Audi A3,with Radio,TV,BT,IPOD,GPS,USB/SD CARD,S/W contral,rear camera input and so ... navigation; internal, external (optional), this machine comes standard with built-in GPS.Navigation handwriting function: In the navigation state, can be carried out ... hands-free. Support caller ID, call history information, with a dial pad.Built-in Amplifier: Built-in 4-channel amplifier, 4 × 45W.Touch screen: ...