I am having trouble connecting the front panel audio of my PC case (unknown manufacturer) to a ASUS M4A87TD/USB3 mainboard.
The front panel wires have the following configuration:
FP1 EAR GND ■■■■───────────── (black)
FP2 EAR RGT ■■■■──────┬────── (green)
FP3 EAR RGT ■■■■──────┘ (green)...