I have just bought a Panasonic TX-40JX870 , I have a cochlear implant and use a streaming device for sound this device streams without the sound being affected through the normal tv speakers and it worked fine on my sony tv, how ever when connecting to my Panasonic it will not stream the sound. The only difference between the sony and the Panasonic is the cable connection ie the sony connected through a cable that had a red and a white connection the Panasonic is connected through a cable with 3.5 male ends to suit the tv audio out. Any advice please