What you're really looking for - if you have the 430N (with nav) radio - is this one...
If you go to http://www.jeep.com/en/owners/quality/rbz/
and then select Media Center 430 (RBZ) Manual
under downloads, this is what you'll get. Even though it appears to be for just the RBZ, it also has the RHB detailed info. The cover says "MEDIA CENTER 430N (RBZ/RHB)" and it is a 32 meg download.
Also, when you get your new Jeep, be sure to call the number listed on the DVD and ask for the manuals - including the one for the 430N. You will then get the hardcopy of this manual via UPS.