Turbo97

i was wondering about the wiring. is there any way i can use the 99 si wire harness and just wire in the extra wires for the ecu that run off to the dash. my problem is that the stock wire harness was ripped apart when i bought the car and without fully researching i bought the 99 si wire harness to finish the swap but just found out that do to the 1 piece design its easier to use the stock harness or one off any integra. I was wondering if i have to buy another stock harness or can i wire in the dash wires if i were to find the ecu pinout locations?