So the dealer is quoting me $595.00 to install the sirius radio in my 2011. Is this absolute rape? I know I can buy the sirius module around $400 plus the bracket for around $50. The install fee of $150 sounds high but I heard the newer BMW's take a while to code. I have an appt on Sat to get my SRS light reset due to my headrest replacements...so what do you guys think?

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2011 X5D
2007 M5