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Old 10-10-2012, 11:55 PM   #6
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Join Date: Jun 2009
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Originally Posted by lcoleman View Post
I can attest that it does affect radio reception, but only with the defrost on. Not sure about nav, sorry.
Mine does that as well, and I have tint. It is only a noticeable problem if I have just okay reception to a station.

A while ago, I read a TSB/Warranty-type thing from Subaru that many models could experience this issue, and it was actually because of a break somewhere in the rear defroster wiring. Since the antenna is integrated into the rear glass, the defroster created a lot of interference. They would fix it using some crazy interference-sniffing equipment to detect exactly where in the wiring it is occurring, and also used some other special stuff.
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