I want to disable the tape deck from my '91 Ford Ranger factory stereo, and solder an AUX cable in its place. I took the radio apart, and to to get to the top of the board and find the labeled connections will require an extensive level of disassembly that I'm not sure I want to attempt. Is there any way to tell which pins are for the tape deck audio L/R outputs from the bottom of the board, pictured below?
Alternatively, is there another way to wire a AUX cord in to the factory stereo without disabling the radio, or having to rely on a radio transmitter?
Thanks for your time!