Instruct: Classify a given Amazon review as either positive or negative.
Query: Interferring noise suppression

I tried two seperate units each on the switched and non-switched 12 volt lines going to the Kenwood aftermarket radio. The noise got less but there was still some there. That tells me that the AM noise is most likely getting in through the antenna. I put a ground strap between the hood and the body but that didn't make any difference. I believe that the noise suppression on the electronic control modules in my '98 Chrysler Sebring convertible is not doing its job anymore. Too much work to listen to a few good distant AM radio stations while I'm driving.