i honestly cant remember which model is but i wanna say that model already has the vtec wired into the harness at the ecu, it just doesnt come out of the harness in the bay, i could be wrong but i think the cx is like this too.

PM 60-1ek he knows, or i will look later when i get home from work

on my b16 i just added the wires right in, mine had the pins already in it, look in the manual and fins which ones they are on your car.

im too tired from work and am ona dial up connection so it would take forever, ill get back to ya