Mercury - Flush Mount Trim Pad (Quad Engine) Helm Trim Control 87-879303A04. OverviewThis flush-mount trim pad gives quad-engine DTS setups an easy, clean way to manage trim for all four engines right from the helm. The pad sits low in the dash, so it doesn't crowd your controls or get in the way when you're running the boat. Each button has a comfortable feel, making it simple to make quick trim tweaks as conditions change. On a quad-engine rig, having trim control laid out neatly in one spot m