Who knows how to check speaker wire polarity?
Ladies and gents, I'm in the middle of changing out TVs, both front and rear on our '04 Itasca Horizon 36GD with the C-7 330HP CAT. Now, a small amount of history here. Winne and Itasca, in that era...
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Use a 9v battery to touch your speaker wires. When you have it correct, the speaker cone will move outward. When reversed it will move inward. Observe the battery polarity when it moves outward.
Dave
Dave
