Mercury - Triple Engine Trim Harness Kit (DTS) Multi-Engine Trim Wiring 84-895744A02. OverviewThis kit gives a triple-engine DTS setup the wiring it needs so the trim switches and Zero Effort Controls work together the way they're supposed to. Instead of piecing together adapters or mixing old wiring with new, this kit brings everything into one clean path. It keeps the trim system steady, makes the rigging easier to follow, and takes a lot of the guesswork out of running three engines.. Key Fea