Too much haste. I rushed out and bought two Garmin power/data cables expecting to use them on a couple of my motorbikes. I've since read more of this thread and Emmbeedee's other thread and determined that the rugged mount is the way to fly. Ordered. I'm not sure if I'm going to need these two power cables. I'm going to use the SAE connector setup since my bikes already have those installed for battery chargers.