Hey guys I want to install a INFINITY REFERENCE 1042W 10" sub where my stock one is, now its a 250 watt rms woofer does anyone have any recommendations for an AMP? do I have to get a bridgable amp or a regular one?. If its a regular one which wires do I use the once that are going out of the factory amp or the once before they get to the factory amp for the stock subwoofer? Thanks, Stan.