Vintage Boom Box Sanyo M9716 Cassette Tape Player/Radio M9716, weak channel

Vintage Boom Box Sanyo M9716 Cassette Tape Player/Radio M9716. Radio and cassette player are working. Unit tested OK using AC wall plug and with batteries (6 D batteries). Antenna a little bent but fully expands/retracts. Equalizer works. Did not test record function. Speakers are detachable and both work, however one side/connection has very low output, need to turn balance all the way to one side and turn volume up all the way to hear anything. Swapped speakers and issue is with the channel, not the speakers as each speaker sounded normal when connected to the one fully working channel. One of the clips that locks one of the speakers in place is broken off, speaker still sits in place properly and you can carry entire unit around with handle but you can lift one speaker off its mounts just by pulling up on it as its not locked in. Selling as parts/repair. Measures approx 20.5"L x 5.5"D X 8"H