Haynes manuel will tell you how to remove the steering wheel. You will need a steering wheel puller, makes things a lot easier. The switch is inside the column. I think you can get a puller on the cheap at Harbor Freight.
1991 YJ 4.0L, K&N air filter, SS headers, 31X10.5, Congo Cage, etc...
When all hope is lost, and you have run out of options, you can always break out the "HOLY HAND GRENADE"!!!! It may not fix it, but you will feel a lot better.