my 06 GS300 Nav, radio, CD unit just stopped. Will not power up. I guess it is the fuse somewhere in the 5 fuse boxes that the manual does NOT show.I now know it is NOT RAD3 10A is OK. help?

 

There are four fuses that control the stereo amplifier and radio assembly. The two large 30 amp fuses amp one and amp two are primary supplies to the amplifier itself and generally will not cause an issue with the radio illuminating. Then there are 2-15 amp fuses radio number one and radio number two. Radio number one is located in the fuse box under the hood. Radio number two is located in the fuse box under the left side of the instrument panel. The radio number one fuse is the main power supply to the radio receiver assembly. Radio number two fuse is the accessory power supply. If that doesn't work try disconnecting your battery.