I have all of the Denon documented AVR codes in an excel format for quick cut and paste. It is a beta version. They work for the 5806, 4806, 4306, 3806, 2807, 1905 and others. I do not have them in the RTI library yet but I imagine you only need the 4306 specific codes (iPod, USB, Net etc...). All the 3806 codes found in the master library work for the 4306. I can email the file.

About the file... using make hex, I generated all of the sharp and most of the possible Kaseikyo codes using the device numbers applicable to Denon AVRs. I organized them in worksheets by make hex device number and documented the applicable codes in pronto hex and their function names. There are many unused codes but I figured that they could be filled in as new ones came down the pipe and I expect a number of new codes with their next releases. I bent more than one ear at Denon about iPod, USB and Net control from zone 2/3.

The codes you may need are can be found on the Denon-K 4.1 page.