Radio comes on, but no sound coming out of the speakers, 2002 Toyota Echo

SOURCE: Fuses in a 2002 toyota echo?

The one labeled "ACC" in the interior fuse box

SOURCE: How to....remove radio sepakers (rear) from a Toyota Echo??

It's really easy to remove the rear speakers. First, get in the trunk and find the 3 white anchors for the rear deck-they're near the rods for the trunk mechanism. Push them through the metal frame to free the deck. Next, you have to get in the back seat and remove the stop light from the deck. To do this, push in the pins on the locking mechanisms on either side of the light to free the back casing. Pull the pins out and the casing off. Next, undo the two bolts holding the stop light in place and pull it off-don't forget to undo the wiring harness. Next, find the three anchoring points for the back seat. Gently lift the two side ones free of their anchors. This gives you access underneath the deck. Free the deck and gently lift it over the seat. You'll have to jimmy it a little to get the locking clamps free--they're all along the back of the deck. Pull it free and you have access to the speakers. I believe the factory speakers are 5 1/4 inches
Try to use Toyota speaker adapter plugs so you don't need to cut wires and mess the electric system up. You can get them from Ebay or Amazon.
cheers

SOURCE: Suddenly my toyota echo 2002 battery light come

check the alternator fuse and main breakers if they are okay look to see if any belts broke on the engine if they check out okay then replace the alternator

SOURCE: where is the radio fuse

If the radio powers on, the fuse is OK. You probably have a bad output section in the radio.