I will be hooking my Punch 360.2 to my factory HU which does not have RCA outputs. Since I will then be using the speaker level inputs on the amp, I will be taking the rear speaker factory wires and running those to the amp. Will I completely lose the signal going to my rear speakers or is there a way to splice the signal so that both my rear speakers and amp can run off of the same speaker wires? Also is it true that the signal strength is less than 1 volt when using speaker level inputs? Would a signal booster of some sort be worth installing? Thanks to all those who can help.