The wire swap is due to production changes between the two models. It isn't required if you put a MK7 into a MK6. The wire swap is only required if you update a MK5 to a MK6 or MK7 climatronics panel. The MK6 doesn't have the diagnostics like the MK5 or MK7. I first went to the MK6 but now have the MK7 in my R32.
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