Question about 2003 GMC Envoy

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Factory radio reception failing

Radio stations will come in perfectly clear when in the middle of town or close to radio tower. Reception is lost very easily and in areas that do have reception. My thought is the antennae is not operating properly or maybe an antennae booster is failing. Do you have any more ideas for me. The car is a 2003 GMC Envoy XL with standard radio/CD player.

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  • poasvcllc Feb 19, 2009

    2006 Envoy...17K miles...AM works fine in town but has short range and increased static when out of town. Can hear engine revs...works fine 35 miles away if the engine is not running . Otherwise, radio works as it should. Never such a problem in Silverados or Express vans. am/fm with disc radio. Any ideas...dealer will only replace the radio.

  • Anonymous Mar 12, 2014

    How do get out the broken radio antenna screw on a gmc envoy claims 04

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I would suggest installing what is called a filter capacitor.You can get these at most car audio shops or a electrolytic capacitor rated at 16v or higher and around 30uf (the capacity is not very important) you connect it from the Positive to the Negative on the radio. The idea being a capacitor will allow the A/C current (noise) to pass through to ground without going into the radio and this is usually the cause of poor reception.

Another possible cause could be simple a poor quality antenna, some manufacturers are going cheap on the antennas since most people don't listen to the radio anymore. You could try to screw an antenna off of a different car onto the base on this one and see if that clears up the problem, they are a some-what universal thread.

Posted on Feb 20, 2009

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