Continued the Aileron Trim mounting... Pinned out and installed a 9 pin Dsub connector to the trim motor. Cut the trim electrical run from the VP-X to length and pinned out. Removed the (2) nutplates from the seat ribs as required. Completed the frabrication of the trim arm weldment and mounting block. Installed temporarily, positioned the trim motor as required and drilled to seat rib. Connected the Dsub connectors, tested via the VP-X and Skyview. Calibrated... Everything is working fine, and indications on the Skyview are correct.