What fuse is for the radio panel in my 2004 Impala?

Out of the blue failed or bought car used ,and radio dead. now.
factory radio or after market
the factory cars radio has fuse in the cab box marked radio
open the glove box
pull you operators guide
turn chapter fuses.
read the words there, and bingo radio
the radio is bad,
CD works proves fuse is good.
the lights on a radio work of cars parking lamps and the cards cluster light dimmer and that has its own fuse and is good too.
the radio has lamps inside that are dead, (non LED )
time for an new radio for sure. an 18 year run is good.
that hot spot is not good, keep radio off, so no fire inside it.
the fuse must be the right 15 amps, or fail that will.
i am looking at the stock car radio service manual whole car.

quote (I/P means instrument panel)
The radio receives power from the RADIO fuse in the junction block-right I/P


this radio may (some do) have a theft deterrent lock out.
i guess it will telly it is locked out if is.
qoute
Radio theft lock is diagnosed as a stand-alone system.

quote #3
"
The "Theftlock" theft deterrent system is a feature on all base and uplevel radios. There is no need to program a security code into the radio as in past model years. The theft deterrent system now utilizes class?2 serial data to determine if the radio is in the appropriate vehicle. Each time the radio receives the "run" power mode message, it compares the VIN information it has stored to the VIN information received from a module on the class?2 serial data circuit responsible for transmitting that information. If a mis-match occurs, the radio display will indicate to the user the radio is locked. Once this takes place, a DTC will set, the radio will not respond to any button presses and become inoperative. The two scenarios able to cause this condition are:

• A radio is installed from another vehicle.
• A module which communicates on the class?2 serial data circuit which supplies VIN information to the radio is replaced and not properly setup with the correct VIN information for that vehicle.