Recent content by ZTatZAU

  1. Z

    2007 Trailblazer LS - OEM (UBO) Radio - Very little sound

    Thanks again to all who replied here! New speakers are in, sound good and I can finally hear the XM preview instructions on the OEM GM radio. I appreciate your help. ZT
  2. Z

    2007 Trailblazer LS - OEM (UBO) Radio - Very little sound

    Let me try this question again... If a GM radio displays and plays two XM Preview channels, does that mean the radio is Sirius XM capable? If so, how do I determine the GM radio's XM Radio ID to sign up for a subscription? As for my speaker installation... Please keep in mind I'm learning as...
  3. Z

    2007 Trailblazer LS - OEM (UBO) Radio - Very little sound

    My 2007 Trailblazer also has a factory (?) satellite antenna on the roof, just behind the windshield on the driver's side. I'd like to know if this antenna is for Onstar, Sirius XM radio, or perhaps both? As far as I know the car does not have Onstar and that's fine with me. But my original...
  4. Z

    2007 Trailblazer LS - OEM (UBO) Radio - Very little sound

    Thanks again for your informative replies, dragon.breath! ZT
  5. Z

    2007 Trailblazer LS - OEM (UBO) Radio - Very little sound

    Blown speakers just as dragon.breath suggested! Jumpered up my, wrong size 6x9, test speaker and the stereo comes through loud and clear. Any suggestions on finding an easy swap speaker set that will bolt right in to my 2007 Trail Blazer? I'm not what you'd call an audiophile and don't need...
  6. Z

    2007 Trailblazer LS - OEM (UBO) Radio - Very little sound

    Oh! I see what you mean! Connect the interface harness and do my probing there instead of at the vehicle's connector. Not sure if I'll get to that again as I'm about half done with getting the driver's door panel off. I'll soon have eyeballs on the LF speaker and also have a new (but old)...
  7. Z

    2007 Trailblazer LS - OEM (UBO) Radio - Very little sound

    I've already done that 1aespinoza... ... and found the sound was the same as when the original radio was installed. That makes me think the problem is with blown speakers as dragon.breath suggested or broken, shorted, and/or corroded speaker wires. Still wondering if I can test for these...
  8. Z

    2007 Trailblazer LS - OEM (UBO) Radio - Very little sound

    Thanks for your reply, dragon.breath; and you could be right! But I don't think there were that many speakers to start with. I know there are no speakers in the top of the dash so that leaves two speakers in each front door (one being the tweeter I can hear) and a regular but sadly blown...
  9. Z

    2007 Trailblazer LS - OEM (UBO) Radio - Very little sound

    Hello, I'm new to this forum and this is my first post here. I am not a car audio guy but I do need some car audio help! Recently picked up a very nice, 1 owner, low mileage 2007 Trailblazer but the OEM GM radio had no sound. If the volume was turned all the way up, you could hear very faint...
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