Ok, I did as suggested, and connected the sub to my laptop. Seems I may have bad audio cables, as soon as I plug it into my laptop, light turns green.
But, now there is still no sound. Except for a bad staticy sound that happens, especially when turning the volume knob on the subwoofer. As soon as I unplug the subwoofer from the laptop, sounds comes back on as normal.
Here is a link to the basic manual, seems it is an older model of the jbl subwoofers.
View and Download JBL ARC SUB8 setup manual online. JBL ARC SUB8: User Guide. ARC SUB8 subwoofer pdf manual download. Also for: Arc sub.
www.manualslib.com