Fitted

Here it is fitted to the aft bulkhead on my Mac 19.

My arrangement is a bit unusual - the 19 has no console, and my engine has all its controls on a large tiller handle. I've run a 4-core cable from inside the handle through the big grommet to behind the panel. The cable carries +12V, ground, and kill-switch connections.

(The black rectangle is an hour meter)