I have a older Mitsubishi Rear Projection tv and have plugged the dvd player yellow rca jack into input 1 or 2 on the back of the tv. I have run the sound rca chords, red and white, to my stereo receiver for the sound side. When I select the tv remote control input on the tv it does not show input 1 and 2. Only input 3 which is on the front of the tv and my wife would never go for a yellow cable along the front of the tv. How do I get into input 1 or 2?