2007 MAZDA MX-5 Electrical System Problems

There is a leak on the passenger side footwear which has caused rust on the from cross frame and the wires for the airbag to get wet and other wires.

THE AIRBAG WARNING LIGHT CAME ON. I TOOK THE CAR TO THE DEALER, DYER MAZDA IN VERO BEACH, FL. THE DEALER TOLD ME THE AIRBAG MAY OR MAY NOT DEPLOY IN THE EVENT OF A CRASH. THEY SAID I NEEDED A PASSENGER WEIGHT SENSOR, A PASSENGER SEAT TRACK ADJUSTER, AND AN SAS UNIT. APPROXIMATELY $2,000 JUST FOR THE PARTS. I CALLED THE MANUFACTURER, MAZDA, AND AFTER REVIEW, THE MANUFACTURER CONCURRED THAT THE AIRBAG MAY OR MAY NOT DEPLOY UNLESS THESE 3 PARTS WERE REPLACED. MAZDA AGREED TO PAY FOR THE LABOR ONLY, $650, BUT I WOULD BE RESPONSIBLE FOR THE $2,000 IN PARTS. MY CAR IS IN EXCELLENT CONDITION, ONLY 11,752 MILES ON IT. THERE WAS NEVER ANY DAMAGE TO THE PARTS - IMPACT, WATER OR OTHERWISE. SINCE ALL 3 PARTS ARE REQUIRED FOR THE AIRBAG TO WORK PROPERLY, I FEEL MAZDA SHOULD COVER THE COST OF THE PARTS -...

THE PASSENGER AIRBAG DISABLED DASH LIGHT REMAINS ON WHEN THE PASSENGER SEAT IS PUSHED TO THE REAR WITH NO ONE IN THE SEAT. THE PASSENGER SEAT BELT UNBUCKLED WARNING LIGHT IS ALSO LIT EVEN THOUGH NO ONE IS IN THE SEAT. BOTH LIGHTS TURN OFF WHEN THE EMPTY SEAT IS MOVED FORWARD. I AM UNSURE IF THE AIR BAG WILL DEPLOY IF NEEDED. A MAZDA DEALER TOLD ME THEY HAD SEEN THE PROBLEM BEFORE IN OTHER VEHICLES AND THERE ARE DISCUSSIONS ON THE INTERNET ABOUT THE PROBLEM IN OTHER CARS. THE DEALER DIAGNOSED MY CAR AND TOLD ME IT COULD BE ONE OF TWO PARTS BUT THEY COULD NOT BE SURE WHICH PART CAUSED THE PROBLEMS. ALL THEY COULD SUGGEST WAS REPLACING ONE PART AND THEN THE OTHER PART IF THE PROBLEM PERSISTED. THE PARTS ARE THE SEAT WEIGHT SENSOR ($1281.03) AND THE SEAT WEIGHT CONTROL ($523). THE CAR HAS...