2007 ford edge sel factory stereo system electrical system shorted out and killed battery. tried to start car and battery was dead tried to jump and was not able, put new battery on vehicle and the factory stereo system started smoking and my now deceased husband had to quickly pull put the stereo system and off the new battery. the eye to system shorted out and fried the battery burnt the wiring and started to catch fire when replaced battery. now have new battery on vehicle and no factory stereo system just a hole to the engine compartment in the dash because of the defect of factory issues. please help.