Hi, i hope my opinion helps i have been in audio for 15 years and am MECP certified. I think panasonic is to cheap, Kenwood is to high priced for what you get because of the name. Alpine has a great unit and warranty but if you have an issue i have waited months to get the unit repaired. Pioneer has quick turn around on repairs and is a great price for the quality you get. Clarion i feel the same as pioneer just a little more pricey but a little more quality. Hope this helps.
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