Factory momentary switch
 

I have a 2011 V6 Premium convertible on order and I'm already planning some convenience mods. First is going to be a garage door opener. I was told that the Car2U system isn't available despite being in the owner's manual and it can't be installed as an aftermarket item.

It's easy enough to modify an existing remote to work from a momentary switch (the Genie remote is 12V so it can be wired to never need batteries). But I'd like to use a switch that looks factory installed. With the electronics package, there are blank positions below the heated seat switches (comfort package). Does anyone know if those blanks can be replaced with factory look switches? Is there any combination of options that would have switches there? (I can easily change the labeling.)

Any other blanks in the dash or console that can be replaced with factory switches for other purposes?