There isn't a separate switch, they are tied into the awning lights. It took me a while to figure that out too. There have been a couple of threads recently where folks have rewired to add a separate switch for those particular lights - something I will do as well, just haven't gotten to it yet.
Rob & Kelly, Bella & Brady (Miniature Schnauzers)
2016 Eagle 323LKTS
2016 Ram 2500 6.7L CTD
2015 White Hawk 29REKS Summit Edition (Traded)