hello to everyone i am new here , i have a 2002 sport trac and can't get my radio to sound full volume, but i did notice that the headphone light is on, might this be the problem. how can i fix this? thank you.

Switch in headphone jack stuck. Take end of headphones and gently push in/out and wiggle a little. This might realign it. It could also be a little burnt in the switch - especially if you have the volume cranked and either plug or unplug the headphones.

thank you goingstrong, will try to fix it. is this why the volume is low even when volume is set to high.

Just to kind of piggyback your thread, I had a question about the rear stereo controls. My headphone jack lamp is always on in front. With RSC Mode ON/OFF. Is it supposed to stay on? I tried putting in a headphone jack like said in the previous post. No change. I did notice that with RSC On the rear speakers turn off, or at least very low. I tried the owners manual but it's pretty vague. Can somebody briefly explain this system to me?