Easy way, Remove the 2 screws below the radio/above the heater controls....
Than pull the whole thing out....Remove the wires and done..
Harder way is to use 4 coat hangers cut them about 6 inches, place each one in one of the 4 slots on the side of the radio, push them in till the clips are unlocked, grab the radio and pull.
OR go buy the tool to remove..
I highly recommend the First one..
Todd Z