View Full Version : Bad audio out ports?

07-31-2010, 08:21 PM
I have a pretty old sony head unit. its says explod 50watt x 4 on the front. I hooked up my amp and sub, but i get no sound to the sub. the amp powers on and everything, but no sound. im wondering if it is a bad audio out terminal on the radio? how can i test this?

08-15-2010, 02:48 AM
There is a internal selector. power the deck down and the puch the volume knob in and hold for 5 seconds. the you will see the menu....