anyone ever try to update a 1998 civic "HX" to run the 1999-00 SI engine wiring harness? Having trouble with the "HX" harness with regards to the oxygen sensor. 7 wire vs 4 wire.. that every other model has. Or should I just put a 1998 "DX" wiring harness in it? I'm thinkning down the road to put a V-tec head on my "LS" turbo set-up. Any input would be appreciated.