83 S10 Delay Wiper Wiring??

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Alright this 83 S10 had the delay wiper switch on the dash - called the pulse wiper system, option CD4... But, someone hacked the wiring up in there and took it out to replace it with a washer fluid switch/motor since apparently the washer motor went (the fluid holder was replaced too). So, I got a new switch from the junkyard but haven't the faintest clue how to wire it up! Anyone got a diagram?? The 84 manual I have only shows the main wiper circuit....