Bought a 1993 320e couple weeks ago and previous owner said that the radio didn't work because the code had to be reset. He had unplugged the battery in the car and lost the code. My question is: Do the instrument panel lights, speedometer,rpm gauge, etc. work on a specific code? The fuse is not blowed for the instrument panel lights. Also all of the interior lights are not working i,e. the little lights for the window switches the gear shift lights, and also the little lights on the door panels for the window switches. The dome lights and the lights at the bottom of the doors are the only inside lights working. Please help me solve this problem. Thanks in advance.