How do you remove radio in 74 dart?

2 wires for power to the radio. Red from the radio fuse, orange from dash lights for dial illumination.
To remove the radio...
Remove the under dash vent assembly. It has 2 nuts hidden inside holes from the bottom up ( 7/16 or 1/2 deep well socket I forget ) and a couple of small screws attaching it to the main plenum.
Remove 4 sheet metal screws that hold the ash tray hanger in place and remove it.
The radio has a support on the back ( nut on a stud ) that is attached to the dash with a sheet metal screw. Thin stem nuts behind the radios knobs ( 9/16 deep well I think )
If the speaker wires are disconnected ( black and a green in seperate connector from power ), The radio should drop to the trans tunnel.