Mercury - Side Mount Remote Control, 8-Pin Traditional Outboard Control with Trim 8M0176294. Overview. This is the side mount control a lot of people already recognize the moment they see it. It's the traditional 8-pin Mercury setup that's been around forever because it works. Trim is built right into the handle, the warning horn is already there, and the harness length usually lands right where you need it without coming up short. If you've rigged or run older Mercury or Mariner outboards, this