Two weeks ago we purchased a 2010 Supra Launch 22v and have put 14 hours on it. In the process of boating on Saturday we lost power to the blower, horn, bilge, stereo, heater, accessory lights, courtesy lights, docking light, navi lights. The instrument gauges, Supra Vision, and ballast pumps all work and the engine starts. The Main thermal circuit breaker was tripped and I've reset several times. I've also checked all the fuses, reset each, but none of those were tripped. The only issue that I was working through was the stereo amplifier was overheating and kicking into thermal shut off mode, not sure if that would have anything to do with all the other items. I'm at a loss on what the issue is and I don't have a multimeter on hand, appreciate any suggestions for trying to remedy.