Anybody have the docs on PRT wiring? Online at Shopbot lists it, but it is for PRT Alpha. Putting a PRT Z on a PR, but the PR Z has 5 wires, PRT Z has 4, want to make sure I get it right. Also using PRT control box, X and Y also have 5 wires on the PR, PRT uses only 4. PR - White, Red, Brown, Black, Green. PRT - Red, Blue, Green, Black. Also need docs to make sure inputs are same, etc....