I had the P9 installed on the starboard corner of the PH right behind the helm seat, magnetic interfererence was 13 which was acceptable. Realizing that it needs to be close to the center line of the boat, I relocated under the dash. Problem is the pump is only 2 feet away and all the other electronics are in that vacinity. My interference level is at 33 now, they said anything over 30 is no good. Curious where else can I mount this.