I would say yes to the resistors and Cozye's map. I've been pretty much running this exact setup for about two years now on my '04 and it's been running like a charm
My first real bike, 1972 Moto Guzzi 750 Ambassador. Bought it with 1,100 mile in '74, sold it in '80 with a little over 60k miles on it. Wish I still had it.