Most of the wiring issues are going to come from user error. There are only a handful of wires that are different than the civi version that actually aid in the operation of the vehicle. This does not include all the test leads used for the STE-ICE machine, but these wires have no other function than for tests. There are however, relays and diodes that are not used on the civi version that will throw owners unfamiliar with the set up for a loop. These realys and diodes are for the 24V set up(starter, alternators, voltmeter and dummy lights for the alts). I would suggest getting a copy of the TM's if you purchase one.