Radio is dead, no marked fuse for radio, so how do I check to replace?

CD player still work??? ..........It's the same fuse!!!

No fuse behind radio. Don't waist your time. Did you check fuses under the hood? Use a test light to check fuses easily. Do it with key in accessory position. Check to see if anything else quit working. Radios usually have a fuse for accessory and one for memory. Either will stop radio from working. (Sorry) if after market radio it will have fuse behind power plug behind radio.