I have a 2001 MDX. The dealer has the radio code as 15661 but when I call another dealer and give them the radio serial # (as recorded by the first dealer) they give me a code of 16246. I can't check the serial number with the "press 1 and 6 and on buttons simultaneously" trick because it doesn't work on '01 and '02 models. My radio serial number is B10418755. I have used up my errors (ten) but reset the radio both by pulling the negative battery cable and by removing the fuse. Both techniques reset the radio so that the word COdE comes up but when I enter either code it does not work. Has anyone else had this problem or can you help? I am pretty frustrated.