Yes the cup does come out. Remove the mat and there are two screws. It will still be “clipped” into the bezel. A putty knife from the front works to pop it out. I took my gps w/shield mount and cut it off and ran a screw thought it from the bottom. You will need to make a hole for the screw and the gps mini usb connector in the cup. I did not use the factory mat for the cup. I had some spare thin black rubber mat and just cut a new one. Put a hole for the screw and a slit for the usb connector/wire.
I only have a base radio on my 2011 and that is fine with me but I did need bluetooth and a backup camera. I got a 6 inch Garmin with blue tooth, traffic and camera. I also have to use the factory power cable because of the traffic and camera receiver are in the cable. I just plugged it in the drivers side receptacle then ran it under the dash and up behind the bezel and radio.
Pictures are attached, some reflections on the gps screen but you’ll get the idea.
