hi can you help buying a bmw 320d se year 2000 and dont think much of the head unit that is in it and want to know can i swap with another one but the satnav variety as i noticed on mine the heater controls are built into the unit and on the sat nav screen type they are seperate from it and below it where the small compartment is on the one im buying are the plugs all there still behind the unit and are the two units swapable as i realy would like to buy a full screen bmw sat nav for it
many thanks