I have an 03 audi a4 cab. 1.8T. Just bought it about 6 months ago. The battery went dead. I charged it and started the car. Tryed to put the top down and it started to open, got about 1/2 way then started to shut by itself. Then go stuck and now won't open or closes. The top light flases on the inst. cluster when the car is running. Any thoughts...I have no idea...