I'm not positive yet but I think my engine fuse box is jacked up from trying to get the nut off. Some of the plastic cracked and I think the distribution plate is bent. Does anybody have an engine harness for sale?
I'm doing a restore job. To answer your question you can attempt to undo the two top mounts and tilt the Rad forward to get the wiring harness though. You may have to undo the top Rad coolant hose.
Also unless someone wants to contradict my statement, I believe you can get away with a 2002-2004 GT PDH harness, the downside will be that the driver side fog lamp connector will be different and the horn connectors are different but so far I haven't found any other issues running the GT harness.