No audio vm 113

HELP PLEASE, NOT GETTING ANY AUDIO OUTPUT FROM VM 113 AMPLIFIER MODULE? SUSPECT MODULE. I AM USING A CD WALKMAN AS A SOUND SOURCE 2x 10 VOLUME POTs AND PA TYPE HORN SPEAKERS WITH TWO 12V 12AH BATTERYS, AM I MISSING SOMETHING?

Can you post a connection diagram ? Description sound fine. Is the unit drawing any current or excessive current ? Heating ?