Just avoid the really crappy stuff. Ebay you don't get a warranty either so watch out. Look for JVC, Alpine, Eclipse, and even Kenwood. Avoid stuff like Sony, Dual, and off brands. Clarion and Panasonic seem to be hit or miss. I suggest trying to find a plce you'll get a discounted price, but keep the warranty. Look for the Alpine CDA-9807 which is out of production now, so the price will be fairly low. It's a good solid unit.