Will need a little fab to fit.
3” hole for a 3” Boss head unit was too small, had to use a rotary tool to open up the hole to fit.  The angle is 90 degrees for mounting and my Polaris General dash is not 90 degrees, needed to use my vise to obtain the correct angle.  Throw out the plastic push locks and go with aluminum threaded rivits.
Rating: 3 stars