Sat radio upgrade

I'm a proud new owner of an avus blue 2000 m5 and I'm in love with every aspect of the car but the out dated navi radio with dsp. Is there any type of integrated SAT radio link system or even a head unit swap upgrade??

Yes. But it surely isnt worth it. Upgrade to Mark 4 (MK IV) navidation, buy a new BM53 radio and a sirius module, install an antenna.

Or buy a Dice Mediabridge and use an iphone or ipod (or other music source)...actually I think the Dice can also add Sirius.