natemikegray Posted February 7, 2017 Report Posted February 7, 2017 I'm having problems with my amplifier. it's the Cadence UltraShock A7 HC. For some reason, the diagnostics light turns on when the amplifier powers up, but only when the RCA wires are hooked up. After it powers up and then i hook up the RCA wires, everything is fine, or i remove the RCA's while the amp is on and then hooke th back up. It only happenes when the RCA's are hooked up before i turn it on. I know its not the RCA's or the power/ground/rem wires because i have multiple of these amps and i tested all of the exact same wires on tese other amps. Please help! 2001 Tahoe No system. Not even aftermarket headunit.
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