Near Intersection of I-35 & I-90 Southern Mn. | I've found that older radio setups used a frame ground and only had one wire to each speaker from the radio. When a newer radio was installed, the frame ground needed to be removed since the radio had a pair of leads to each speaker. On one tractor I wanted to use the original wiring but had to run an extra wire to each speaker.
I guess I'd try another speaker as a test since the originals may have been damaged.
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