stereo questions?

The charging system would be one thing I would worry about. Each time those subs hit they will be sucking power so the charging systems needs to be up for the task especially if you have the headlights lights on. The headlights will be strobing, capacitors will be needed also with that much wattage. Most likely you wont be able to play them loud for very long until the voltage gauge is buried on low and that's when problems start happening after that. Alternative is mount a high out put alternator ALONG with the stock alt ... very expensive alt. These type alts aren't sold at local parts stores. Im running a 2000watt system... just the sub woofers and it wrecks havoc on the stock system. I can only play it loud for so long until the volts needle drops and hit close to "critical" stage therefore I have to turn it down. Later model voltage regulators are located in the ECM which sucks because you cant change it up to keep throwing the volts out. This only true with Dodge however.