Okay after researching this, im thinking about fitting 4 x 3.5mm Stereo sockets into the Expansion port hole, with the LPT Socket Removed. The default hole size of the back panel looks too big to be able to tighten the nut of the audio socket around it, so it looks like the hole would have to be reduced to say the standard hole size you have on the back panel of a Desktop Computer. I do not have any 3.5mm audio sockets to test this out yet, but as soon as i get one i shall try to determine what the best size Hole would be. The advantage of using the existing expansion hole, is that you can always remove the sockets later if you want to put the expansion socket back for other uses, and the fact theres virtually no room elsewhere to do this. If anyone has any thoughts on this i would appreciate a reply.