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  1. #1

    Default Satellite radio antenna question

    I recently installed an aftermarket stereo head unit that is satellite radio capable. While I currently do not have a subscription, I am thinking of getting one. My question is, will I need a new antenna or will my OE antenna be able to receive the sat signal?
    Clint (TX) 2001 Silverado LS 4.8L auto 2wd ECSB [GARAGE]
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  2. #2


    You will need a different antenna. Likely, you'll also need a separate module. Typically, 'capable' or 'ready' advertised head units have the ability to switch to an XM/Sirius source, but require an external module to enable that source. Check the manual for your new stereo.

  3. #3


    Which radio did you get? I ask because I just purchased a new head unit and was told by the installer that I didn't need a new module as @dobey stated. I was told I may need an adapter to be able to hook it up. I believe that @SurrealOne also used an adapter for his HU. Not all HU may be this easy though.

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  4. #4


    I can't speak for XM radios, as I have SIRIUS. To connect my SIRIUS SCC1 to the OEM XM antenna on my 2004 GMC Sierra, I used a GM XM to SIRIUS adapter sold by Here's a link to the part:

  5. #5


    Quote Originally Posted by McClintoc View Post
    My question is, will I need a new antenna or will my OE antenna be able to receive the sat signal?
    Yes. New Antenna. Not sure about difficulty on self install. I would check with Manufacturer of your unit for a recommended Antenna and go from there. At least it will get you pointed in the right direction.
    '15 Silverado 2500 | Crew Cab 2WD W/T | Duramax |
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  6. #6


    This is the exact unit I have:

    Looks like I'll need an adapter. It's wierd though because the head unit has a sat signal indicator (bars, just like on a cell phone) but how does the know strong the signal is without an antenna?

  7. #7


    In keeping things simple for here - The only diff between conventional radio and Satellite is the location of the transmitter. There's a lot more to it of course but that's it in a nutshell.

    A Satellite antenna is designed to receive signals much less amplified than a conventional radio wave antenna and decrypt the encrypted Sirrius/XM signals. Your adapter will provide this function.

    Looks like a nice unit too. I like the NOAA setup it has.

  8. #8


    Quote Originally Posted by awtposts View Post
    Looks like a nice unit too. I like the NOAA setup it has.
    The weather band was probably the biggest reason I bought the unit. I didn't need anything super fancy, just something that was a little better than stock and had an audio-in jack. I work in emergency management so it's nice to know what the weather is up to.

  9. #9


    First unit I've seen with weather / emergency capability. My cousin is a retired Fire Chief so I'll tell him about this as he would like this living in florida.

  10. #10


    When I bought my new head unit the harness I bought to keep all the chimes and on star,factory blue tooth ... It also will keep the factory XM working. The downside to doing it that way is the display for channel and song is displayed on the DIC not the radio. The fix for that is to get a new XM receiver and an antenna adapter. I googled this topic last night and found a few items that would help. There was a youtube video that showed how it was done. I was also able to find an adapter to hook the factory antenna up to the after market XM receiver. I just need to verify the connection types before I post that it will work. But like I said there are youtube video's out there that show how to make it work.

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