I currently have XM capability on my stock radio. If I were to buy an aftermarket radio, and wanted to keep the XM, do I need a separate XM tuner? Or can I use the one that's in the car already? Does anyone know if the tuner is built into the stock radio or if it is separate? Because I already have the XM antenna on the roof, and I'd like to keep that one there and be able to connect it to an aftermarket radio. How does this work?
Mike
Mike
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