Can I damage my headunit, or my speaker(s) if I connect my 2 (460w peak, 80w rms)speakers to an amplifier, and my 2 front stock speakers WITHOUT an amplifier and play it loud? or Could it be possible without risk?
so external amp for the rear, but HU power for the front right?? thats fine. usually people will do that the other way around, since the speakers up front are the ones you need to hear though.
The external amp you are going to run those back speakers is a 2 or 4, assuming it is 2, the amp can handle a 2ohm load per channel. Just take the fronts and rears, put positive to positvre, neg to0 neg on all wires put 2 speakers per channel. you will lose either fade or balance depending on how you wire them.