If you already have the wiring harness out of a DelSol Si then you dont need to worry about anything except the knock sensor (located right under the intake manifold on the block). I am doing this same swap on Friday. Do some research before you jump into things, it's always good to know exactly what you are getting into before you do it. Check out www.hybrid.honda-perf.org or http://b16a.honda-perf.org/tech.html . Both sites have wiring diagrams and have a lot of information about your particular swap. As I said before...do more research before you just jump into things!