Hello I have a Panasonic G30 TV. I have speakers connected with mini-jack to the TVs headphone output. The problem is that I cant change the sound volume from the +/- buttons. I have to go in to the menu, sound settings and change the volume for the headphones. Could this converter solve the problem? AMP Digital Optical Coaxial Toslink to Analog RCA L/R Audio Converter Adapter | eBay So I could change the volume one the +/- buttons like the buit-in speakers.