After turning ON the unit, as the 2nd relay clicks. No audio response even radio or from dvd player. During vol adj from remote/manual adj as the vol increased there's a loud "tic" sound from the speaker. Even up to max vol still no audio. As you played the adj +/- from remote/manual along with the loud "tic" sound. All of a sudden the audio turned ON but uncontrolled vol even +/- adj. looks the audio is stuck on its level of vol. Even max/min audio level is the same (but the "tic" sound still there as the adj from min to max and vice versa and of course as you reached the 0 level no audio ). Again, the audio is gone once you tried to adj the vol no matter +/-. Putting to DTS and Pro logic 5.1 the audio is blurry and very low and same as the problem and symptoms from above. I need your expert ideas on this. thanks very much in advance...God bless.