2012 TSX with nav, I changed out the original battery (the right degree of difficulty for my skill level). I have the respective PINs for the radio and nav, but am unable to enter them using the 6 preset buttons. The buttons just don't respond to any input. Have tried all the other buttons (scan, search, power, etc.) without success, including holding them down, or in different combinations. The dealer suggests a "main shop diagnosis up to $125 + tax" and I have an appt in a week. Help! Any ideas?
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