Yes the engine bay harness works. You just need to splice in a 30" section to reach the front. I flipped the harness to the right side and ran it through the existing grommet behind the battery. The battery on the Odessy is in the left front and ours is by the firewall right side, so running harness on opposite side of the instructions still worked. I just copied this thread to S2000 talk to see if we can get some more help. It should'nt be that hard to modify the inside connectors to make it all work.