THIS ADAPTER DOES NOT WORK WITH TRACKER HERO!!!
This adapter ONLY works as a 1-button joystick when used with an Amiga. DO NOT BUY IT FOR TRACKER HERO.
It works with Shredz64 on the Commodore 64, but WILL NOT WORK WITH A GUITAR CONTROLLER ON THE AMIGA!!!!!!!!!!!!
I'm sorry if I seem a bit upset by this but I've had to put up with so many people telling me that this Shredz64 adapter should work with Tracker Hero, only to have to explain to them that it doesn't sent CD32 signals, only a proper PS2-CD32 adapter like Paul Willingham's or the Appe project on Aminet will work.
If you would like to build the adapter yourself, here are the instructions - http://aminet.net/package/docs/hard/appe_v32
Somebody has a case of the Mondays

(and yes I know it isn't Monday)