I recently got a new pair of 6x9 speakers for my rears and i noticed that there are 4 wires going to the stock speakers from the monsoon amp. Is there a way to wire the new speakers to the factory monsoon amp? Polk Audio - 6" x 9" 3-Way Coaxial Loudspeakers with Poly-Mica Cones (Pair) - DXi690 these are the speakers that i got will they still work in the rear with the monsoon amp?