im puttin a 86 MAF TPI into my 92 305 camaro rs. im using the 86 TPI wiring harness, going through it today i see that i am missing a few connections, most improtantly the big connection thats on the driver side of the firewall, i believe its for the fuse box. also there is an extra connection on the dash board end of the harness its got two thick pink wires with one brown going into a grey connector but i cant not find that. my 92 harness does not have that connection. could someone tell me what i need to do and have done to make sure everything works.