Trying to figure out why speedometer & wipers will not function... plus the ABS & Parking Brake indicator lights are on full-time? Also notice general glitchy movement of some of the analog gauge needles???

 

Spent some time poking around under the hood pushing/pulling on things and lucky enough, happened to tug on a wire cluster which led back to a slightly loose and corroded ground screw! Uploaded a photo for reference... its the ground screw touching the tip of the orange clamp (located on driver side fender rail).