Yes,if the shifter moves it may be that the shift cable didn't latch when the drive was installed.Make them show you.Go the the 4 minute mark https://www.bing.com/videos/search?q=bravo+3+shift+cable+latching+&&view=detail&mid=38E5F2342564F131E1E338E5F2342564F131E1E3&&FORM=VRDGAR
Todd, there are screws going up and down thru that assembly behind the mirror and tambor doors (keep track screw length and locations).You have to remove the 2 side upper panels in v birth along with the starboard bolster in the v.The assembly is a very tight fit, pull it slowly ,use extra care...
Front 2 stanchions are accessed by dropping the plastic panel under the pulpit.Remove the stainless insert and you will find the exposed self tapping screws that holds it in place.Going aft on port side remove v birth upper panel 3(screws in pleat).Next move to the cabinet just in front of tv...