Mercury - Side Mount Remote Control, 14-Pin Outboard Control with Trim 8M0176287. Overview. This is the side mount control Mercury started using once the 14-pin harness became standard, and it shows. Everything plugs in the way you expect it to. The trim switch sits right on the handle, which feels natural once you're running, especially when you're constantly bumping trim to keep the boat happy. The long harness helps too. You're not stretching wires or coming up short halfway through the riggi