I want to connect my laptop to my TV through HDMI and then connect my TV to Home theatre 5.1 system. However,my home theatre system is very old (CX-NMT520) so I can't connect it to TV via HDMI, only via A/V cables and my TV only supports stereo AV. Is there anything I can do? On one of my earlier posts, it was suggested that I buy a usb mini-toslink and then connect laptop directly to home theatre system, but I don't see a way to connect my home theatre system to the 5.1 headphone jack that the toslink offers.