If you want to receive TV programmes then in addition to the TV tuner box p/n 4DO 919 146B you will need 3 aerial amplifiers to replace the standard diversity amplifiers already fitted, plus a switch-over box and cables. I can find the other part nos if you are interested but recommend you double check everything with an Audi dealer before buying. The aeriel amplifiers are unique to the A2 but the TV tuner and switch over box are common with other Audis
Regards Spike