My 1992 Civic VX hatchback does not have a rear wiper. It would be real nice if I could get one. I would need the motor assembly in the back and hopefully the dash switch.
Now if you really want to know all about wiring it and making it work properly, there's a really good thread over on honda-tech. Fairly comprehensive. It also involves doing some other squirter mods for the headlights and whatnot, but the rest of the info you need is in there. Looks like a genuine pain. Have fun.