That photo is the top of the FDIM. If you pulled the entire
ICC out, there's basically 3 parts to it. FDIM at the top, which is the touchscreen, Audio Control Module at the bottom which is radio, CD, amplifier (not sub amp) and then the front panel controls.
I think most of the front panel controls will still operate even with a faulty FDIM as it just passes the CAN signals through.