Unknown to many (myself included), the siren mounted in the boot of the 1st gen IS—which the car alarm uses in tandem with the horn—actually contains a backup battery. Continue reading “Siren backup battery replacement”
Unknown to many (myself included), the siren mounted in the boot of the 1st gen IS—which the car alarm uses in tandem with the horn—actually contains a backup battery. Continue reading “Siren backup battery replacement”