I switched the OEM one with a
Denali SoundBomb Mini
Specifications:
Sound Output: 113 dB at 3 feet
Current Draw: 5 Amp
Dimensions: 3.25"(82mm) x 3.4"(86mm) x 2.5"(63mm)
Works fine, is a little bigger so the clutch cable kinda rubs on it but other than that its ok.