I got the same headunit. I never bypassed the factory amp and it sounds fine to me. Somebody told me at best buy and circuit city that if i don't bypass it, I can burn out one of the amps (factory and internal amp in headunit). I don't believe that. They're just trying to make money that's what I believe. I bypassed it and it's not as loud so i took it back. If you hook up an after market amp, you're still running both amps. What the hell is the difference? That's why I kept it like it is.
