the 94 wiring harness has all the connections for the top but not the windows. to get the top to work all you have to do is buy the switch on ebay. if it was my opinion i would sell the 5.0 and buy the 5.4 from a lincoln or a cobra and do that swap it is less modification. it would be like doing a gt swap. but that is my opinion not to mention it would be a super charger and irs to a terminator cobra.