OK so i've decided to put MMC6500's in the boat powered by a four channel amp with 75 RMS per channel. The problem is the front speakers are way up under the windshield and the rears are approx. 10 feet back from those so i came up with the bright idea to add a third pair about 4 feet back from the front pair. Can i series wire the front and middle pair together? If so will it affect power to them? Sound output / clarity?