The 0.9 Cu Ft Greystone Standard RV Microwave # 324-000106 is designed to sit inside a full cubby area so you'll have to have a separate light and fan like what we see with the RV range hood and lights, like part # FHO23SACRBL.
For a combination of a microwave with a light and fan built-in we have the 1.6 Cu Ft Greystone Over the Range RV Microwave # 324-000135 instead. You'll just have to make sure the 29-7/8" wide x 16-7/8" tall x 18-3/16" deep overall dimensions work well with the space... view full answer...