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2024 Chevrolet Corvette Stingray Z51 — need advice: Alternator whine after adding a DSP amp

ShiftEnthusiastCommunity StarterJan 4, 20262024 Chevrolet Corvette Stingray Z51San Diego
2024 Chevrolet Corvette Stingray Z51, about 8,200 miles. System is clean with the engine off, but as soon as it starts I get a high-pitched whine that follows RPM. I already checked the obvious grounds. What is the most efficient order for isolating whether the noise is power, signal, or routing? Appreciate any ideas on what to check first.
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3 replies

QuietGuy73Community StarterCommunity StarterJan 5, 2026permalink
Hard-won lesson from my last deal: Call your insurer in San Diego before you fall in love with the 2024 Chevrolet Corvette. Do that before you talk monthly again. On “need advice: alternator whine after adding a,” that was the fork that mattered for me. Just my two cents from doing this recently. I screenshotted the quote for later.
NorthPilot2Community StarterCommunity StarterJan 6, 2026permalink
Quick add on that: GAP, paint, and nitrogen are optional until you run the 2024 Chevrolet Corvette numbers without them. Do that before you talk monthly again. The universe charges extra for guessing. PPI guy I use is booked until next week, so I'm waiting.
CleanNerdCommunity StarterCommunity StarterJan 7, 2026permalink
Asking because it changes the advice: Two 2024 Chevrolet Corvette quotes only help if both include tax, title, and the same options. Screenshot the worksheet if you can. Verbal 'we'll take care of it' is not a plan. Not wiring anything in the meantime.
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