2021 Chevrolet Silverado 1500 — alternator whine after adding amplifier and DSP
2021 Chevrolet Silverado 1500 LTZ 6.2, about 73,000 miles. System is quiet with the engine off, but a high-pitched whine follows RPM once running. Grounds look okay. What is the fastest isolation ord…
EVGuy113Community StarterJun 6, 20262021 Chevrolet Silverado 1500 LTZ 6.2Pennsylvania2 replies0 helpful