@@@@@@ my g/f just burnt up my soundstream referance 500 sx ..any thoughts

man i am burnt out ...she leaves in my car to go to town and she come back like 2 mins later with the car full of smoke comming from the trunk ......i was like fu##..i had pumped it hard for like a hour yesterday and nothing wrong she gets in there for 2 mins and smokes my stuff ...she dosent even like hard bass that much so i know she wasnt pounding it and the positive wire wasnt even warm .....any thoughts...its running bridged to 0ne channel and 4 ohm ..and wired with all 4 guage rackford wire and all pg conections and fuse blocks.........and i was a installer for 2 years so there is no ghetto wiring at all...