You’d have to put it all the way around it, including near the connector. Obviously you can’t put it inside the connector, but that’s another avenue for noise to get in. Outisde the box of noise with it’s own box of insulation is a much calmer place.
What if I put foil all around it
You’d have to put it all the way around it, including near the connector. Obviously you can’t put it inside the connector, but that’s another avenue for noise to get in. Outisde the box of noise with it’s own box of insulation is a much calmer place.