I realized that having any wires in the proximity of the Adahrs was bad for the magnetometer. I came up with a new bracket, with inverted flanges for additional stiffness, and lengthened the harness by approximately 2 ft. I installed the bracket and routed the harness to the next bulkhead back, then to the side and down and then fwd, away from the Adahrs. The OAT probe was installed in the aft fuselage, extending through the skin just fwd of the aftmost bulkhead
