hi i have a 93 civic with a ls/vtec setup but i got a new jdm b18b block form the internet that came with the rounded square plug it only had 3 wires but it looked like it had a forth that was pulled out and i have the round 4 wire i just want to know if i get anther plug like the one i got on the b18b block can i match up the wire colors and use that plug and alternator. THX FOR THE HELP

both plugs had wire colors
wht/gre(this is the one the b18b was missing that looked liked it was pulled out)
wht/red
wht/blu
blk/yel