Waxing Aluminum Sided TT??

I know it's been talked about, but can't seem to find it, What kind of wax can I or do I use on an Aluminum Sided TT? Went to auto parts store to get wax and they said you can't wax painted aluminum because it will peel the paint.
I also know not to wax the decals, going to use 303 Aerospace on them.

Thanks for any help/info.