Radio reception question

That will help. Look at the Corvettes, which used a steel shield around the distributor and plug wires to help prevent radio noise. To be honest, I'd bet not many Vette owners listened to the radio much, and "back in my day" when AM was still "a thing," I doubt those cars enjoyed the long distance reception that us with steel cars had. Even with that, turning the engine off resulted in better reception!!!

If you want to get serious about this, you could bond a couple of metal attachment points to the rear your hood, sand the back bare, and paint the bottom of the hood with a conductive paint, like aluminum. Then run a couple of flex grounds at the back of the hood to the cowl.

Vette shielding: