I have finally figured out how to get sound to come thru the overhead speakers. I have the Jensen TV JE3208 and Jensen DVD/ Radio. First unplug the audio cables (red & white) from the Aux 1 connections see figure 1 leave the video plugged in. Know plug the audio cables into the ground loop isolator by using 2 inline connectors now plug the other end of the ground loop isolater into audio outputs see figure 2 (I was getting a buzz in the sound when the blower fan comes on for the furnace or A/C. I bought a ground loop isolator from Radioshack model 270-054 and that seems to have cure that, you will also need two inline connectors they usually come two in a package the one I bought where made by Phillips .) now switch the mode on the DVD/ Radio to Aux1 see figure 3, Figure 4 just show how I have the audio connect from my DirecTV receiver. The sound works with the air antenna, the DVD/Radio and the DirecTV receiver. I have not been able to try it with cable tv yet.