jim
CLARION are a bit of a problem to decode as the only one that can be decoded for free by Serial Number is if yours also has a BARCODE SERIAL NUMBER beginning with C 7 0 0 0 0 0 0 + + + + . somewhere on the radio casing (Usually found on a label with two barcodes ...the one required is the lower one )
have alook to see if you have one please something like c 7 0 0 0 0 0 0 1 2 3 4
hay88, September 2010