I'm new to these forums as I drive a Saab myself. However, a good friend of mine has a 1991 Audi 100 with an intermittent starting problem. Off hand, it would almost seem as if the battery will not hold a charge. On the advice of her mechanic, she has tried disconnecting the battery when not driving the car to test if there is something draining it. This does not solve the problem. It would seem like on any random day the car will not start. It's as if the electics are completely not existant. One can re-connect the battery and turn the key and there is no sign of life anywhere even if the battery is charged. Could this be related to the alarm system or something or is it possibly and ignition switch problem? Any help is greatly appreciated. Thanks.

-Ian