I'v just had some body work done and the roof mounted antenna was removed. Now I have really poor AM reseption only FM works fine. Does the antenna need to be grounded to the body? It was working fine before.
The roof antenna does have an amplifier, and it does need to be properly grounded, but just bolting it in should accomplish that. Check with a meter to make sure it's getting 12v when the radio is on.
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