Considering a tC...is XM available on the 2007 models? The website says "Available for Model Year 05/06 tC only" when I build my own and select XM.
Also, I do not want another external antenna mounted on the back.
Is there a "standard" install procedure that takes place? Do all dealers have that one pictured above where it goes behind the rear view mirror, or do most use the external mount kit?
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