Mercury – Single Engine Helm Kit | GPS and Helm Harness | 8M0208458Mercury Single Engine Helm Kit GPS and Helm Harness 8M0208458 OverviewThis kit is an easy way to get a single engine DTS helm set up without hunting down separate pieces. You get the GPS feed and the helm harness together, so the wiring ends up cleaner and a lot less confusing. Its a nice option if youre trying to keep the dash area simple instead of stacking extra parts behind it. Overall, it just makes the install feel more straightforward. Key