way is used. Try ebay and be patient. I like Alpine stuff because, among other reasons, they are clear as to their unit's power, and usually under rate them. The power you really want to know is the "dynamic" power at 14.4 v (when car is running). The Alpine web site, in the Tech center, give most of the units' specs which makes some sense out of the many units available. Look for units prefaced by an "F" (four channel). Good luck.
