Under Dash Wiring Question

[brandster]

Haven't done much to my truck in the last several months and went to crank it so I could move it around and get to other things I needed to. Could not get it to crank or even make a sound when the key was turned. I fully charged the battery and still nothing. Headlights come on so I know at least there is some juice there.

A few months ago I played with the wiper switch/wiring trying to get the wipers working correctly instead of the toggle switch someone installed, and worried I may have messed up other wiring, its a spiders nest anyway with all of the wiring under the dash. I know nothing about wiring to begin with but figured I would give it a shot.

Anyway, I know the wiper switch works as a ground as far as for the wipers working, but would it also work as a ground for cranking the truck? The wiper switch is currently not mounted on the dash. Figured I would ask before wasting more time on it. I did order an AAW original style dash harness last night online since the current wiring is a mess, but would still like to get it cranked in the meantime. Thanks