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Discussion Starter #1
Recently got my 2011 3500 but did not get the sat radio option. I have an external Sirius radio and was hoping I could use it in this truck the question is can I attach it to the fin antenna on my roof. From what I understand the fin antenna does both the Onstar and sat radio but where do I find the antenna wire and do I need some sort of adapter as I assume the roof antenna is made for XM

thanks in advance for any ideas
 
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