Yes you can add one. It shouldn't take very long at all. I'd do it myself as they will likely scratch the side and break a window...if they are as capable as my dealership's tech's seem to beLFranklin said:Does anyone know? Can you add an additional adjustable crossbar to the rear roofrack? Or, does it require disassembling the current rack? My local dealer will order the crossbar, but doesn't know how to put it on, will not give an estimate without "looking at it first."