The radio antenna lead is in or behind the front storage locker.
I could not fish my coaxial either. I drilled a hole so that it came out just inside the fridge vent and ran the coaxial through the overhead storage lockers. You can't really see it.
I tried to use the existing flat antenna wire by putting on a 300/ 75 ohm transformer on each end and then connecting to coaxial, but it did not work. (see thread fishing for coaxials in the desert)
Sail on silver girl. Sail on by. Your time has come to shine.