I have two 12" MTX thunder 3000's and a 900watt car amp. My wife wants then out of the car, they take up too much trunk space. I don't want to get rid of them, but I need some subs in my home for my surround sound system. I figured that to car subs should fill the smaller room that I have my theatre set up in. Am I going to blow my receiver if I use my 4 ohm car subs in my home with that receiver. My receiver is 500watt 5.1 RCA. My thinking is that if I take the sub leads off of the receiver right into the car amp, then to the speakers, I will be fine and not blow the receiver. is that true?