McIntosh MX130 FM antenna

Is there a way to connect a dipole FM antenna to this unit? Roger Russell's site says there are AM and FM terminals but I don't see them. The manual tells how to attach an AM loop antenna with a DIN plug but nothing about FM.
There's a 4" L-shaped stick in a ball socket hard-wired to the back of the unit but it doesn't seem to do the trick. The reception is nowhere near that of my old MX113.