Anker
First, check the connections at the enable switch (on the end of the stalk). Just pop off the cap (comes right off with a thumbnail) and check that the black and white wires are soldered to their respective switch posts:
If the switch connections look ok, then it could be the contacts at the base of the cruise stalk. The cruise stalk is part of the turn signal switch - it doesn't come off and I don't see a way to disassemble it. But there are holes on the bottom where you can see some of the contacts. Shooting some of that contact cleaner you bought in there might help (wear eye protection). Here's a shot of the holes on the bottom:
To gain access to the holes, you'll have to remove the bottom steering column cover. There are screws under the steering column you'll have to take out, and you also have to take out two screws directly behind the steering wheel that hold the steering column front cover to the bottom cover. You have to rotate the steering wheel 45 degrees to gain access to them, and use a long handled phillips screwdriver. Also, loosen up the top screws too to allow the front cover to move a bit - it has a lip that locks in the top and bottom covers. Once the bottom cover is off you should have access to the bottom of the holes where you can see the internal switch contacts.
But my bet is that it's the switch at the end of the cruise stalk. If you unsolder the black and white wires it appears that the switch will pull straight up and out. The body of the switch snaps together, so (if you are mechanically inclined) you could disassemble it, clean the internal contacts, and then put it back together.
If you go this route be REALLY careful. If you break anything you'll have to replace the entire turn signal switch.
Hope this helps! (and sorry for the long-winded post!)
Bill