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Car Audio Help
Wiring, Electrical & Installation
Hooking a backup battery to an alarm system
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<blockquote data-quote="duginnz" data-source="post: 98374" data-attributes="member: 540638"><p>battery backup sirens have a rechargeable battery built in to the casing.</p><p></p><p>find a fairly large one and mount it in a spot under the bonnet to let the noise out as much as possible, but make it very hard or imposible to reach.... inside the bumper or under/behind the inlet manifold.....be creative.</p><p></p><p>if the starting battery is disconnected, or if the wires to the batt backup siren are cut, then the siren will go off and keep going off.</p><p></p><p>put one inside the back bumper to if you want.</p><p></p><p>if thieves get the battery off, or if they cut the wires to the first second or third siren, then they will end up wasting serios time getting to the last one(s).</p><p></p><p>i have several very sharp items placed around the most obvious siren in my own car...if they steal my car, then i gave it my best shot, but i know they paid for it in blood......</p></blockquote><p></p>
[QUOTE="duginnz, post: 98374, member: 540638"] battery backup sirens have a rechargeable battery built in to the casing. find a fairly large one and mount it in a spot under the bonnet to let the noise out as much as possible, but make it very hard or imposible to reach.... inside the bumper or under/behind the inlet manifold.....be creative. if the starting battery is disconnected, or if the wires to the batt backup siren are cut, then the siren will go off and keep going off. put one inside the back bumper to if you want. if thieves get the battery off, or if they cut the wires to the first second or third siren, then they will end up wasting serios time getting to the last one(s). i have several very sharp items placed around the most obvious siren in my own car...if they steal my car, then i gave it my best shot, but i know they paid for it in blood...... [/QUOTE]
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Hooking a backup battery to an alarm system
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