Weird, mine does one pass with one click of the knob, 2nd click is continous & 3rd position is spray/wipe continous. Oh wait, I forgot, I have the 03 MPV wiper stalk that has adjustable intermittnet setting so maybe that's what is different. Maybe y'all need one of those too. No mods, just take the old one out & the MPV one goes right back in the same way. Good stuff.............wasn't aware of it doing anything different with rear wiper tho. Coulda sworn that my oem acted same way with rear wiper just didn't have adjustable intermittent on front wipers. I do have my original if anyone interested in that. If so, I can take pics & be all official by FS standards.
BTW, while your at it, do the Mazda 6 rear wiper swap too...looks much better, even seems to work better. See how-to section.