I fail to grasp why R22 has a jumper in that location. I can see that you are NOT using the on-board LED indicator, but that’s no reason to jumper the on-board CLR (R22). I’m also aware that it likely has no bearing on the noise issue.
Also, I can see there is no ground wire on the input jack. Without a ground wire going to that input outside of the box, the ground of the circuit is not complete. Try adding that ground wire to the input jack.