I need to trouble shoot the alarm system. Once I lock the car and set the alarm, the alarm system will go off at random times for no reason. At least three times it was a few minutes after I walked away. Once in the middle of the day when I had not driven it that day. And several other times that I know of. I thought it might be my key fob so I found the second one and it made no difference. Are there fuses? I may be a wiring problem?