I recently had to replace my steering column and got a universal model. I didn't realize until it was too late that there was no wiper switch. I have an '85 Monte Carlo, the connector for the wiper switch has a dark green, pink, purple, and gray wire. I want to do it up 'right' later, but right now I just need wipers. Can I just get a universal dash mount wiper switch or is there some special circuitry in the old column mounted one that I would have to have a direct replacement? I have the schematic from the shop manual I can share if it would be helpful, but I can't tell from it. Thanks in advance!