AM/FM Radio Volume Issues

[VTMopar]

My AM/FM original radio works - but the volume is very low unless the engine is rev'd up.....   AM comes in quite good - FM is spotty....    Any ideas?

Thanks
VT Mopar

[Bullitt-]

If I recall correctly FM is more sensitive to antenna ground.

[Challenger6pak]

Could be a voltage problem.  Maybe the tiny amp needs more power. You could run a jump wire dirrectly to the battery to see if the problem goes away.  It is odd.

[VTMopar]

Good ideas..... hopefully one of these will solve it  

thanks
VT Mopar

[hooD]

Make sure the speaker wire connectors are on tight and the wires are not frayed or grounding out against each other. 

Lightly spraying some WD-40 into the volume control stem can clear up a lot of issues with static when rotating the knob. 

Check your antenna wire plug going into the radio for a solid fit.