Connecting Bose Companion 20's to Old Subwoofer

[sillyjph3]

Hi there,

I have Bose Companion 20's; the left speaker connects to the right via 3.5mm and then the right sends out a 3.5mm cable into the PC. In the middle i'd like to add my old Subwoofer (Harmon Karden H/K595) which has 3 ports (Stereo, Rear, Digital) and also inputs for both left and right speakers. Problem is left and right speakers are 5 pin connectors. The two left/right inputs in the sub are different which is also weird?

How do i connect these to my computer?

 

[americanaudiophile]

The sub doesn't have left or right inputs it has stereo, rear, and digital inputs.
I would try to connect the orange sub center output of the PC to the front input. Looks like 3.5mm stereo plugs at both ends. Leave the Bose connected directly to the PC. Set the PC to 2,1.

 

[sillyjph3]

The sub doesn't have left or right inputs it has stereo, rear, and digital inputs.
I would try to connect the orange sub center output of the PC to the front input. Looks like 3.5mm stereo plugs at both ends. Leave the Bose connected directly to the PC. Set the PC to 2,1.

The sub has 3 inputs, which of those 3 should i connect to the orange sub output on PC? I have the Bose connected via the green output