Never operate the radio without a speaker; severe damage to the output transistors will result. If the speaker must be replaced, use a speaker of the correct impedance (ohms) or else the output transistors will be damaged and require replacement.
REMOVAL & INSTALLATION
See Figures 1 through 12
Fig. Fig. 1: AM-FM radio assembly-1982 Celica, others similar
Fig. Fig. 2: AM-FM radio with equalizer and cassette player-1982 Supra shown, others similar
Fig. Fig. 3: On some models the ashtray must be removed to separate the trim panels-1984 Celica shown
Fig. Fig. 4: Remove the heater control panel screws ...
Fig. Fig. 5: ... then pull the knobs off the levers
Fig. Fig. 6: Carefully pry the panel from the dash. Tape the end of a prytool to protect the trim
Fig. Fig. 7: Once disengaged, place the trim panel aside
Fig. Fig. 8: Unscrew the radio trim, then remove it from the dash
Fig. Fig. 9: Remove the radio mounting screws ...
Fig. Fig. 10: ... and pull the unit out of the dash
Fig. Fig. 11: Separate the antenna lead from the radio ...
Fig. Fig. 12: ... along with the harness plugs
Disconnect the negative battery cable.
Remove the attaching screws from the trim panel.
Remove the trim panel, being careful of the concealed spring clips behind the panel.
If necessary, disconnect the wiring from the switches mounted in the trim panel.
Remove the mounting screws from the radio.
Remove the radio from the dash until the wiring connectors are exposed.
Unplug the electrical connectors and the antenna cable from the body of the radio and remove the radio from the car.
Reconnect all the wiring and antenna cable first, then place the radio in position within the dash.
Install the attaching screws.
Reconnect the wiring harnesses to the switches in the trim panel and make sure the switches are secure in the panel.
Install the trim panel (make sure all the spring clips engage) and install the screws.
Check radio system for proper operation.