I have recently purchased this 1996 sea doo xp. Rode it for 2 days and one of my buddies connected the vts system and it blew something. We immediately un hooked it and it would not turn on at all. I can jump the engine by the solenoid and everything will turn over. The key is not activating the mpem that i just purchased and installed and will not beep or turn on at all either. I have chased wires with a continuity tester to make sure there is no shorts and all passed. I checked the entire MPEM box and all checked out and all connectors. All the grounds are good and a new starter put in! I am getting close to a dead end and looking for more advise. I have also checked the mag housing and all looks good