Finally, once you've verified that all wires have been connected correctly, you've got sufficient grounds, and your taillights respond appropriately (see text for full rundown), it's time to do a little adjusting. You'll need two people for this--one to tune, one to operate the signals--and adjustments can be made initially from the LS6 box (shown) as well as from the PG-3 flasher, for near infinite adjustment of sequencing times!