Yeah, mount them in the center console. Not sure if they make one for the 2014's yet, but it's worth a look. It's an frame that goes under the lid. The radio heads get mounted on a plate and the plate gets mounted to the frame. Look at the Havis and Troy websites. Probably someone more familiar with doing radio console mounts can come up with the right part numbers.
Now, how about the antennas. Last I heard the 2014's have aluminum body, right? That's good, since magnets belong on refrigerators, not antennas.