When I installl them I will include that. I will tell you know but it might be hard to understand.
Passenger side is grounded with a purple wired engine? ground that sits right on the top of the frame. Look at the top of your engine and then look left and down and it's right there. (the ballast is mounted on the same frame area just closer to the headlight.
Driver side ground wire is attached to the speed bolt where the fender I think attached to the frame. Ballast is mounted right on top of the frame where there is a riveted on metal tag.