No fuses are blown and the radio still does not turn on

Hi,sometimes there is a fuse on thhe positive wire that runs to the back of the radio,and sometimes there is a small fuse thats inside the radio itself.
hope you sort it,good luck.

Depending on the model of radio the fuse on the back of the radio may be blown or the fuse in the fuse box is blown

1.Turn off the vehicle. Locate the main fuse box.
2.Locate a fuse box that isn't under the dashboard by checking under the hood of the car.
3.Look at the diagram on the inside of the fuse box's cover.
4.Determine if the fuse is blown by looking through the clear plastic casing.
5.Take the blown fuse to an electronics store or a car-parts store.Push the new fuse into the empty slot in the fuse box, making sure that it is in the same direction as the other fuses. It should slide in with a tight fit.Replace the fuse-box cover.
6.Complete the above steps before removing the car radio.Disconnect the car battery under the hood by disconnecting the cable from the negative terminal (the black cable) of the battery. Remove the dash area around the car radio.Unscrew the four screws on each corner of the car stereo.Locate the fuse on the back of the car radio.

7.Take the blown fuse to a car-parts store or electronics store to find a replacement fuse. Place the new fuse into the car radio.lide the car radio back into the dash opening. Replace the corner screws followed by the dash trim panels. Put any screws and clips back into place.Reconnect the car battery. Turn the car on, and if the blown fuse was the problem, the radio should work.

OBD diagnostic tool one stop supplier

Wrong amp fuse or maybe you have a loose wire or a short somewherecausing the fuse to burn out?

Sounds like you have an electrical short under or inside the dashboard somewhere.
PLEASE do not turn the radio on again until that is fixed.
As a retired firefighter, I can honestly tell you, you might start a fire and burn up your car if you do not fix this.
Be blessed.

Blown fuse(fuses painel box).Blown hidden fuse (on the radio wiring,behind the radio)Bad grounded ground wire(s).

The auxiliary power (when the car is off) is separate from the power that powers the radio when the car is on. It sounds like you might have a blown fuse. Check the fuse panel and see if the fuse associated with the radio is blown

SOME RADIOS HAVE AN INTERNAL LOW AMP FUSE. IF YOU CANT FIND A FUSE MARKED "RADIO" IN THE FUSE BOX...THAT IS BLOWN...IT MAY BE THIS. IS IT AN AFTER MARKET RADIO?

Wich fuse for the radio system would you like to replace? There are 6 of them. Your integrated control panel (dash unit) is controlled by the rear electronic module. This is all part of the multiplexed computer network in your car. I would recommend BEGINNING diagnosis of your radio by scanning your computer network for fault codes, then go from there...

Even if there is a blown fuse, this is an indication that there is an electrical failure which must be diagnosed and repaired. Blown fuses do not cause electrical component failures. Electrical component failures cause blown fuses. Replacing a blown fuse without diagnosing and correcting the fault that made it blow will only result in another blown fuse.

Please also review the following article:
Where's The Fuse?

Are you sure no fuse was blown? there are more than 1 fuse box (in engine and under dashboard).