I have a Concert 2 stereo in my 2005 A3 and like the idea of connecting an aftermarket Sat Nav unit (eg TomTom or similar) to the stereo. The idea would be to use the Sat Nav unit to play MP3 music files via SD cards through the car stereo. I would like to use my phone hands free via Bluetooth and have speed camera alerts etc. The sat nav feature would be useful too!
Anyone got a set up like this? Which Sat Nav unit? Easy to install and cost?