I actually hacked the stock harness apart and created my own engine wiring harness as a result. This of course was before they came out with an adapter board that enables you to remove the stock computer and add the adapter (no cutting required). It adds a bit of cost...but if I had to do it again, it would have been worth it. The one thing that's a must if you do the adapter is to relocate the IAT sensor to a location that doesn't heatsoak. MAP setups typically require a much greater accuracy of IAT's than does the stock EEC IV...and as such you'll need to find a spot away from the lower intake...and away from radiant heat in the engine compartment.