dj,
yeah, they work on the vx.
you want the can that says 134a, (the new type of freon) and one of those hoses that are probably close by on the shelf. the place you put it in is on the drivers side, close to the firewall, just aabove the valve cover. ive recharged mine, no prob.
im pretty sure that therre is even a tag that says low port ac on it, kinda light blue. i think the cap on it is also light blue. i might have a pic that ill post.