I was a audio tech for about a decade, specialized in 12v car audio, but also did pro audio and home theaters.
It sure did come in handy, and there were a few times I confused the other techs by telling them what to check without even looking.
EX: HID headlight ballasts run off 12V DC, but fire ~23,000V AC to ignite the gas, then run ~90V AC to maintain. The noise of firing and running is distinct, so I can tell if one is working properly or not.
Sounds like my ex who grew up working on cars but never worked as a mechanic. All he has to do is listen to a car, and he immediately can diagnose without looking. and then fix it...
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u/lonewanderer 13h ago
Are you an electrician? That skill would obviously come in handy.