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2003 gmc envoy_slt_xl
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Discussion Starter · #1 ·
2003 Envoy SLT w/ 6CD changer AM band reception has turned bad. Never great but now terrible. Wondering if my recent removal of the exterior analog Onstar antenna may have something to do with it...any chance the antenna served both Onstar and boosted AM band reception. FM is fine.
 
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