Need help connecting to surround sound to a vizio sound bar

SOURCE: I don't get sound from

You have a red and white composite audio cable the simplest way is to hook that to your audio output on your tv then obviously the other end goes into the soundbar. Make sure its an OUTPUT not input on the tv, if you hook it up this way everything that plays on your tv will then play through the soundbar.Some tv's do not have an audio output if this is the case then you will have to hook it up to an output of another source such as DVD player or cable box. There are two other possible audio outs on your tv they are fiber optic audio and digital coaxil audio but usually not the case as they are usually only inputs. One other thing some tv's(very rare) require you to go to menu to enable audio out. There is one other possibity and that is HDMI which carries picture and sound but again TV's rarely have this output.

SOURCE: i need to know how

Depending on your model of Vizio, most have a fiber optic (Tos-Link) out. You just need to connect a fiber optic cable from the optical out to your receivers optical in. Now the optical out on the TV is really only used for sound that the TV is outputting, so everything coming from that port is going to be stereo except from over the air brodcasts (Antenna) that the tv is decoding on its own (you don't have an external cable box) Your best bet for sound quality would be to plug all devices (cable box, game systems, blu-ray player) into your receiver directly (Audio and Vidoe if supports) so all audio video is going through that, and you only have one video cable coming up to your TV. Going that route will keep you from having to change sources on the TV when tryign to switch to a different device.