AM radio static

Thanks everyone. With regards to a condenser and the coil, where would that go?
IIRC plus side of coil to ground.

With regards to trimming the antenna, will this help with the noise while the car is running because again when the car is just on accessory mode the radio comes in fine without any static
Let's assume that the trimmer is adjusted so so. Without car running you get good enough reception. But with car running the static drounds out the so so tuning.

Adjusting the trim pot MIGHT bring in the station just better enough to overwhelm the static.

My guess is the lack of filters in the system from modifications.

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