Question about 2003 GMC Yukon XL
It could be there is no 12v to the base of the aerial. The 307 has a powered aerial. you can test this by removing the rear internal light to gain access
Posted on Aug 14, 2012
This id a classic antenna ground problem, check it out by plugging in a test antenna, I will bet it corrects the problem
Posted on Oct 13, 2008
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Posted on Jan 02, 2017
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