Some later revisions of the RNS 300 require a secret button combo:
: The drive can read standard audio CDs as well as MP3 files burned to a disc. how+on+rns+300+change+language+new
Look at your RNS 300 faceplate.
: Press the SETUP button located on the right side of the unit. Some later revisions of the RNS 300 require
: Press the SETUP button on the front panel of the RNS 300 unit. how+on+rns+300+change+language+new
: If the system asks for the "Navigation CD," insert your RNS 300 Nav Disc . The unit will then copy the necessary voice and text files.