I have a kenwood car stereo and kenwood 6x9s and now we want to add two outdoor rock speakers (8 ohm). If i have to run a little two channel amp to push a little power to these two speakers do you think the above amp is powerful enough? I just want some simple sound in the backyard, more than just the two 6x9s. I want something to hide on the other side of the pool. (i know it would have been way simpler to install a home stereo, but we built it with a car stereo already and have to make it work :))