Quick question for you guys with a 2015 ( or maybe 2013 to 2015). I got my 2015 3500 SRW, Bighorn Pkg. a couple weeks ago and noticed this morning that the outside mirror switches don't light up when the headlights are on. The switches for the windows and door lock are lighted. Just wondering if the mirror switches do not have lights or if mine are not connected. Thanks in advance.