I am thinking if the 80 steering column can be used everything; Ignition switch, headlight switch, cruise control (not that I need this), horn, directionals, high/low beams, wipers, washers, are all wired to work with the 80's wiring harness, which I will try to retain because it will interface with the 1FZFE ECU and automatic transmission. I am hoping to keep the wiring as plug and play as possible and only eliminate those things I don't need. Not sure how the gauge cluster will be modified.