just as an update...I made some calls, and I get conflicting information about the alternator ouput rating on a Passport....it's somewhere between 90 and 130, and a Civic Si is between 55 and 75....either way it doesn't matter, because I don't think the two are interchangable at all....another excellent planning maneuver by Honda :rollseyes:

GTI/Jetta owners are so lucky....120A from the factory