My car (2006 Mini S convertible) has the air bag system warning light. The code reader shows a code for the explosive switch that disconnects the battery in the event of an air bag deployment. The shop I'm using says they would have to replace the whole cable (runs length of car) and that there is no guarantee that would solve the problem. They said they thought there used to be a kit to replace just the switch, but that now they can't find it. this sounds like the reason I'll sell it, but i hate to do that because otherwise, i am totally happy with it. Any thoughts?