Got a bootleg Zaxxon with no sound?

Found this repair log / snippet while archiving some stuff. I remember i'd bought a bootleg Zaxxon board as a working board but without sound

Well, initially I wired up the adapter loom as per the original Zaxxon pinouts found on Spies. However I noticed that there was no power getting to the sound board, but there were a couple of extra connectors on that board not present on the original. After a bit of probing about I connected it up as follows and everything works just fine.

There is a Molex KK six pin header on the sound board. Wire this up as below and you will get sound.

1. +12v
2. +5v
3. Spkr+
4. Spkr-
5. N/C
6. GND

Hope that's of use to someone!