I was able to get the background music working in Gurdian Heroes. I opened up the Saturn and noticed that the modchip was not pushed in all the way. After it was installed all the way in the background music in the game could be heard properly. Loading of games is still a little fussy. Sometimes the system will freeze when loading at the SEGA logo but that is resolved by resetting so I can deal with that. I hope my experience helps someone with their install.