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    Coding Radio for Aux Input, 2006 Jetta TDI

    Hi All, My first post here. I have a 2006 Jetta TDI that came with an AUX input jack mounted just below the radio. I bought the car used and the AUX has never worked. I found on TDIclub forum that I should change the radio coding from 0040400 to 0040401 to enable the AUX. When I try that code i...
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