Need help with HDD LED

Hello there,

Recently I gutted my 4550 to my new clear/see through computer case. I'm unable to get the hard drive LED to work. I had to remove the ribbon cable in the PCB mother board and use the single plug wires with my new case. Just tapping around I was able to get the power on and off and power LED to work. But couldn't find where to plug in the Hard Drive LED. Anyone have any info on where in that connector where the ribbon cable was connected, what pins to use for the hard drive LED? I'd appreicate any info. Thanks.