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Box that looks like it has a speaker and has a bright blinking green light and white
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Box that looks like it has a speaker and has a bright blinking green light and white
My truck makes a high frequency squeal that comes from the engine area when engine is off and parked. After inspection i found a box that looks to have a speaker and a really bright green light that after a few blinks turns to a bright white light . Any ideas? Chevy silverado 2015
Last edited by Nkcwa; September 3rd, 2021 at 11:03 PM.
Possibly part of an aftermarket security system - the squeal may be the alert that the system is armed or on standby; or it may be malfunctioning.
Could also be a siren and/or PA speaker left in the truck by a PO. Many volunteer firefighters/emergency workers have their vehicles fitted with sirens and/or lights. Could be they just wanted a new one when they traded in and left
September 3rd, 2021, 10:15 PM
Box that looks like it has a speaker and has a bright blinking green light and white
