We bought a new 3690 SL Big Country in April in Seguin,Tx.,burning up in it still,but that is for another forum we can't hear the tv over the a/c .We have a Toshiba tv and the genesis radio,DVD,mp3,etc. How can you get the tv to use the speakers unless a DVD is in? I asked our dealer but I guess there was too many other things wrong they didn't get around to fixing it....they had said maybe they could do that since so much had been left unfixed before delivery.Anyway all I was told was they thought I needed some cable to fix it....We are are tired of hollering over a/c and trying to hear each other and/ or tv.When a DVD is in you can hear fine on 15 when just tv is on it has to be on 50 .NOT a well thought out system we have read booklets but get no sense out of them.