I've got an '83 plain jane Berlinetta that has just standard wiper controls. I also have several steering colums from Z28 and IROC parts cars that (I'm pretty sure- gotta go double check that, they're in my storage barn) have intermittent wiper switches on the column control tree.

So, if I use one of these columns or put an intermittent control switch in my column, what other parts would I need downline from the switch to make the wipers run under intermittent control? Is there just an additional relay? Are the rest of the windshield wiper components and hardware the same as on a car with just standard controls?