Thanks guys for all this good info on the Nolan Helmets & Communicating with them...

I was speaking to a BMW Dealer today which carries the Nolan Line...He stated that when riding the Road King the static and noise from the bike engine and Rhineharts Dual Exhaust will make the intercom non functionally. 
He basically told me not to waste my money on buying

The Basic kit
This is the standard equipment with the N-Com system, and is easy to install on the inside of your Nolan N-102 N-Com ready helmet. This is necessary to start ANY N-Com setup
or
The Intercom BoxThe Intercom Box allows wired communication between rider and passenger when installed in the rider's helmet.
I am sure that there are Harley Roadking owner on this website that have used this setup....I want to just be able to talk to my passenger while riding not answer the phone or listen to music....I Would love to hear there opinion on noise & static going threw the intercom system.......
Again Thanks for all your help....
Have had no static or interference issues from the bike. No emissions from the bike have impacted the wireless com. The bike isn't hardwired to any of the helmet com so nothing from direct connection either. Ambient noise will just depend on how loud your pipes are.
For auxiliary hardware you'll need the "basic kit" in each helmet no matter what you do. That's just the speaker and mic package that includes the various auxiliary wired connection points and battery charger connection.
If you want more than just wired inputs from things like a CD player or GPS device you'll need either the Bluetooth module or the intercom kit. The intercom kit is a volume control and interface module that attaches where the bluetooth module would otherwise. It also includes the audio cable to go from helmet to helmet. You'd need an intercom kit for each helmet.
The alternative would be one intercom kit and one Bluetooth kit if you wanted Bluetooth connectivity in one of the lids. You could also do Bluetooth modules in each lid. The Bluetooth module gives the volume and other interface controls for all functions that the intercom module would for only the intercom function.
Take a look here to see some of it visually:
http://ncom.nolan.it/module/Index_ENG.htmPrices of $100 for the basic kit, $250 for a bluetooth module and $125 for an intercom kit are currently shown at this US vendor:
http://www.helmetshop.com/itemdesc.asp?ic=01-NCOM-11&Tp=It was a quick look that found that vendor. I've seen the stuff offered cheaper before. It'd pay to shop a bit.