What bow and year is it. Before any greasing try cleaning the cable rod and the inside of the slide with 91% or denatured alcohol. Sometimes a little grit makes the slide creak. Hows about the arrow dragging across the rest? Some moleskin helps that.
Maybe it's the little plastic tidbits (I'm having a brain fart) that the cable yoke attaches to on the end of the axle. A drop of lube here might do.
If this doesn't work then to grease the limb pocket you have to disassemble the bow. You should be able to back out the limb bolts far enough (about 10-11 tuens) enough to slip the string off the cam. Clean the rocker and limb pocket with alcohol and apply a dab of lithium grease on the rocker. Also, as long as you're that far a little film of grease under the plastic washer between the limb bolt and limb is advisable. Then put the bow back together.
And as long as you've gone there should be a couple plastic washers between the limb fork and cam. A touch of lube here might not hurt.
Take your time and be methodical.
If You're Not Living on the Edge You're Taking Up Too Much Space
Martin/Rytera Staff Shooter
PSAA Life member, UBP Life member
PADI AOW Diver