Mercury - Trim All Harness Adapter DTS Trim-All Connector 84-8M0163379. OverviewThis adapter gives you a simple, no-hassle way to hook a trim-all switch into a DTS setup. It plugs in as a small in-line connector so you don't have to splice wires or build your own workaround. If your boat needs a clean link between the trim-all button and the DTS harness-especially on rigs that have been updated or rewired over the years-this adapter keeps everything tidy and working the way it should.. Key Featu