Hi there. I just bought a 2004 Impala LS. I love this car to death. I want to replace the factory speakers with some aftermarket ones. However, my car came with the factory amplifier(part number 10449235 Panasonic). Can I remove the factory speakers and hook up my aftermarket ones to this amplifier? I've heard that the factory speakers are 2ohm speakers and so I wanted to know if I was going to run into any problems wiring this up. Anybody have any experience with the GM amplifiers?