Reply to HELP with Analog Routing on Vestax VCM 100

I have a Vestax VCM-100 controller. The specifications state that it has an ESI Maya 44 soundcard.

I have 8 RCA ports on the back. 4 INPUTS (1,2,3 and 4) an 4 OUTPUTS (monitor 1 and 2 /master 3 and 4)

I want to use my VCM-100 controller as an analog mixer. (Plug in 2 CD players and mix between the 2 channels)

I tried this and it did not work. I plugged one CD player into input 1 and 2 and the other CD player into 3 and 4.

I had the 3 and 4 output (master) going to my amplifier.

I have the unit powered from the USB on my computer. The lights are all on.

The only thing that works is when I plug into INPUTS 1 and 2. I get audio out of the headphone jack (Output 1 and 2). With no level controls at all.

Is there a way to use this controller as an analog mixer?

Here's some images to help out. Thanks.

vestax-vcm100_top_back.jpgVestax_VCM_100_BLOCK.jpg