Wii audio glitch occasionally

[Tafty1987]

So I've done quite a few wiidual and wiihdmi installs over the past couple of years but have never encountered the issue I'm facing with a customers wii. Gcvideo works perfectly fine 99% of the time BUT sometimes(1 in 20 chance) when I turn this wii on the audio is extremely loud distorted and crackling in the system menu and if you launch anything. A quick power off and on usually clears the issue.. Sometimes you may have to do this twice.

Ive tested composite video at the same time hdmi is doing weird stuff with the audio and it's perfectly fine there, I've gone over my work and can confirm its not an install issue