It is a base sedan. The plug is the same but it is missing wires that the heated plug has. It also does not have the fuse slot in the trunk.Are you sure Th at your car is not wired for them? I really don’t know myself. However, I put leather heated & power driver seat and heated Leather passenger seat in my 07 convertible. It originally did not have the power seat but the wiring was there.
if you think about it I doubt that gm would run two lines of wiring during the manufacturing of the harnesses. Ie .. make one harness that will cover all possibilities. The one thing I don’t know is the following:
do have a sedan to a sedan ?