gilly well as far as you question goes what happened I only can speculate.the interior was disassembled and partially missing,and the ignition taken out now with your i'm kind of trying to find missing link.you mentioned das circuit what is that and what components are involved/main components, or which ones would be the culprit enablying key to turn....no need to look up srs component if you don't think there is some kind of cut off for main power/key turning......mb_buddy