I know it can be done because when I drove my new 2500 HD AT4 off the lot yesterday and I had my iPhone plugged in using Apple carplay. The entire width of my screen was the Apple map. I drove it that way for about 200 miles And when I stopped and turned the truck back on again the rest of the time it had the Google interface on the right side of the split screen and I can find no way to revert it back to when it was original.