Will a 2004 A6 factory XM unit work in a 2003 A6?
I am interested in swapping out my 2003 factory 6-disk Audi Symphony stereo with a similar (used) 2004 unit with satelite radio controls along with the 2004 XM module. I was planning to use an aftermarket magnet-type antenae. Does anyone know if this will or will not work? Thank you very much for your time and consideration.
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2003 A6 2.7T 6-spd
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