i bought alacantra blue interior that are heated, but my car isnt wired for that. how hard would it be to get oem parts and connect them. if you had an approx cost that would be cool too. has this ever been done?

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b5 s4 avant/nagaro blue/

As far as I know the seat heater buttons are part of the climate control right? That might get very expensive.

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2004 VW Touareg
2005.5 Audi A4
1997 Audi A4