Air bag override

[Jeadiex5]

I need some advice, my air bag light has been flakey as has been the seatbelt warning and overhead seat occupied light. Had it reset when the car was in for service and was better but has since gotten worse, now airbag warning light is on all the time as is the overhead light. I assume, at least the airbag light and overhead light are related. Seeing as this is a U.S. Spec 2006 E53 with only 75k, is there an seat mat sensor override module out there? I see 2 types but I'm not sure what one applies to mine......or could it simply be a bad module and not necessarily the whole seat pad?