Help w/ Front Panel Audio setup on Epox

[lnin0]

ok, sorry if this is a repost from the tech support section but nobody seems to be able to help. Basically I'm stuck putting trying to setup the front panel audio connector so it is only enabled when headphones are in use. Otherwise I want the sound to default to the rear output.

Here is what the Epox 9NDA3+ Manual says:

When the jumpers are removed this connector can be used for front panel audio. The front panel phone jack should have "normal close" switch. Without phone plug inserted, the rear panel audio is enabled. With phone plug inserted the rear panel audio is disabled.

1
[] [] mic in / gnd
[] [] nc / +5v
[] [] front line out R / rear line out FR
[] [x] nothing / no pin key
[] [] front line out L / real line out FL

pins (5-6) & (9-10) short (default): only the onboard rear panel audio jack can be used.
pints (5-6) & (9-10) open: only front panel audio jack can be used

OK - Now from the case instructions. It has a green and red jack on the front and the following connectors:

These are all seperate - I just need to know which goes where so I can use headphones from the front but keep my normal speakers plugged in the back
.
[] L-OUT brown
[] RET-L red
[] R-OUT orange
[] RET-R yellow
[] MIC PWR black
[] MIC IN green
[] GROUND black

Thanks