You're going to base your modifications on Audi 1609. Either decide to use the Audio device button to control the WBRDVD, or change the type of the DVD device button to be Audio, using the 992 command. 9XX command instructions.
Once Audio 1609 is assigned to Audio or to the re-purposed DVD button, use the 994 commands (single device mode) to assign the following EFCs to buttons. You'll probably not want to use every function listed.
0 | 34862 | | |
1 | 34926 | | |
2 | 34830 | | |
3 | 34894 | | |
4 | 34870 | | |
5 | 34934 | | |
6 | 34838 | | |
7 | 34902 | | |
8 | 34854 | | |
9 | 34918 | | |
open/close | 34910 | | |
power | 34906 | | |
search | 34968 | | |
clear | 34872 | | |
angle | 35038 | | |
disc menu | 35050 | | |
popup menu | 34826 | | |
up arrow | 34994 | | |
down arrow | 34962 | | |
left arrow | 35018 | | |
right arrow | 35058 | | |
enter | 35026 | | |
setup | 34954 | | |
repeat | 34886 | | |
repeat a-b | 35014 | | |
display | 34846 | | |
pip | 34864 | | |
resolution | 34936 | | |
play/pause | 34914 | | |
step | 35070 | | |
fast fwd | 35010 | | |
rewind | 34882 | | |
next | 34946 | | |
prev | 34818 | | |
stop | 34978 | | |
zoom | 34822 | | |
audio | 34986 | | |
return | 34904 | | |
subtitle | 34922 | | |
secondary audio | 34992 | | |
red A | 34824 | | |
green B | 34952 | | |
yellow C | 34888 | | |
blue D | 35016 | | |
surround mode | 35015 | stereo / 5.1 / pro logic |
audio setup | 34890 | eq / test tones / delays |
fm/am | 34828 | | |
mute | 34924 | | |
audio source | 34956 | coax/opt/aux1/aux2/aux3 |
video source | 35052 | BD/HDMI1/HDMI2 |
vol- | 34876 | | |
bass on/off | 34908 | | |
vol+ | 35004 | | |
eq mode | 35068 | | |
Also check out the 973 and 993 commands for channel lock and Volume punch through. The instructions provided with the RCRP05B are wrong (unless they were recently revised).
