How to replace a column wiper/cruise/bright switch?

[ScottH]

I did a search on this but could not find anything specific to what I need.
Looks like I need to replace the column switch on my 87 that controls the delay wipers, cruise control, and also the bright lights. I am having a problem with the wipers & I believe I have narrowed it down to the switch.

What my question is what needs to be done to replace the switch? Does the column need to be disassembled completely, or just enough to get to the switch? What about the wiring?

Any help is much appreciated.

Thanks
Scott