I used the audio tool to check along the path where audio gets to and it is getting all the way to the 3 wire lead which goes to the speaker board and is in both channels. When that wire is then connected to the speaker board, there is no audio on the right speaker wire on the mainboard anymore.
Tracing backwards, theres nothing on pin 7 on IC103, yet the audio is there once the speaker wire is unplugged again. I guess there is a short somewhere...