I have an RCA rt2600 home theater. I have connected the dvd and cable to the unit with s-video and the required rca cables. I purchased this unit as a display unit. Since it had no wires the RCA rep gave me 100 ft of speaker wire. I installed the unit and literally ran my finger up and down the wire to verify I had everything connected correctly to the speakers. The problem that I am having is that after 20 minutes of use a loud static comes over the speakers when I watch either cable or dvd. When I test the tone the static is not there and the sound comes through clean. However it returns when I return to the dvd or cable and it is present also when I disconnect both the cable and dvd. I do not know where this interference is coming from. Have changed outlets, and moved tv away from the unit and still no luck. Do not know what to do.