PS2 Rock Band Instruments on Wii: Incompatible Protocols, Use Wii Instruments or PC Emulation
Direct connection is impossible.
Why
PS2 Instruments: Wired USB (proprietary protocol) or wireless USB dongle (2.4 GHz proprietary).
Wii Instruments: Bluetooth (Wii Remote protocol) or Wii Remote expansion port (guitar/drums).
No Cross-Translation: Wii OS doesn't enumerate PS2 USB devices as controllers; PS2 dongles don't pair with Wii Bluetooth stack.
Viable Options
Official Wii Instruments: Guitar Hero / Rock Band Wii guitars, drums, mic. Guaranteed compatibility.
Third-Party Adapters (Unreliable): Rare "PS2 to Wii" adapter dongles exist but suffer latency, dropped inputs, no firmware updates. Not recommended.
PC Emulation (Dolphin): Use PS2 instruments on PC via USB → Dolphin (Wii/GC emulator) → map to Wii controller profiles. Best fidelity if you have a gaming PC.
