What is the wiring differencce between the 88 and the rest of crx si models. I have an 88 harness and motor that im trying to get running in this 91 Si shell. The only thing that i noticed is this square plug on the driver side strut tower. On the 89-91's its round but on this 88 its square. I pinned the correlating wires and made it work but there are two wires that my harness does not have, that this ROUND plug is looking for. Black/yellow and another one...i think its solid blue.