Try calling Crutchfield customer service. I have found them to be very helpful. For example, I was looking for a moderately priced home theater system. I spoke with a representative, told them what I was looking for and my price range, and the guy turned me onto a Vizio unit that I am tremendously satisfied with. I didn't even purchase the product from them, as I found it cheaper elsewhere, but the were very courteous and knowledgeable.
1-800-555-7088
FWIW...I have had great success with Alpine car audio products. Reasonably priced and they perform well.