The code in the Monsoon FAQ works (at least it did two weeks ago). We had another member with the same problem of the code appearing not to change when pressing the AM/FM button. It turns out that the first three digits and the second three digits of the code were the same (e.g. 123 123) and the display was working as it should.
White 2000 Trans Am (sold)
White 2011 Mustang Convertible
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