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Old 12-06-2018, 07:36 PM
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JMB36TA JMB36TA is offline
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Join Date: May 2018
Location: Tucson, Arizona
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Quote:
Originally Posted by lust4speed View Post
I'd check the grounds on the tach and radio --and also check dash ground to body and firewall to engine. Sounds like you might be getting voltage back-feeding into the radio that should be completing its circuit to ground.
They were both mounted to the same bracket under the dash. I can try running the tach ground somewhere else.