Hi. Just got a 2001 A4 Quattro 2.5 tdi. I got it what I thought was a cheap price but the remote locking fob doesn't work. I only have one key and it opens and starts the car but doesn't bleep the doors...I have tried to turn the key and press open and even tried lock and still nothing,please any help would be so welcomed. Also it has a built in tv and sat nav,the tv won't work as I am guessing needs to be digital and how do I update the sat nav ?? Thanks so much in advance. Dale.