The "Play Audio While Paused" code plays audio even if audio is muted about gntool

[NicholasMoser]

Upon further investigation, it was found that this only occurs if the Play Audio While Paused code is modified.
GNTool uses the instruction 3860FFFF (li r3, 0xFFFF) for this code. In this case, the issue occurred because the instruction was modified to 38600FFF (li r3, 0x0FFF). The 0xFFFF was modified to 0x0FFF to make the music softer when the game is paused. This has the side effect of always playing the music when paused, even if music is turned off.

Currently not sure the best way to handle this, or if I even want to add the ability to modify the volume part of the code in GNTool.