Nope, none. All he had to do was remove a piece of wood on one side and one piece on the top that the factory had installed to make the original microwave fit. Then he connected it and slid it in.
2008 Fun Finder 189 FBR, (replaced by) 1996 Shasta 265DBFW April 2017.
2006 Jeep Liberty 3.7 (replaced by.....)
2006 Chevy 2500HD, Duramax, crew cab
It's a big world...explore it!!!