My car wanted to stall today while driving home. It happened around 1k-3k rpm. This is the first time I have driven the car since I finished installing the stereo system in my car. I noticed this happened when I had the stereo on pretty loud. Is it possible that the stereo was sucking all the current from the electrical system that causes misfire or even no spark. I turned off the system and the car drive fine. I have 2 PPI amps (PCX480 and PCX1250) These amps rates over 1000W max. Thanks.