JeffR Posted July 15, 2014 Share Posted July 15, 2014 As my charming wife has just flattened the bloody battery on the Car, yet again (third bloody time in the past 5 days - I hate her shifts), is anyone aware of an idiot proof,reliable, after market buzzer that I can fit to a 200TDi Disco? Quote Link to comment Share on other sites More sharing options...
Eightpot Posted July 15, 2014 Share Posted July 15, 2014 Piggyback a wire from the headlamp feed into the power terminal of a relay, use the courtesy lamp as a trigger, and use it to power a car horn installed in the door pocket. Bet she would only do it once more : ) Quote Link to comment Share on other sites More sharing options...
Ruurd Posted July 15, 2014 Share Posted July 15, 2014 Probably not. Probably he will be pestered by the SO to the extent he removes the buzzer/horn/whatshamacallit and sigh every two days about a battery being flat... Quote Link to comment Share on other sites More sharing options...
dave88sw Posted July 15, 2014 Share Posted July 15, 2014 Use a normally closed relay, wire the coil of the relay to an ignition live and then the switched side should take a live from the headlights to a buzzer. With the ignition on and lights on, the relay will be open and therefore not making a noise but when the ignition is switched off, the relay will close and the buzzer will sound, until the lights are switched off and the buzzer then has no live feed. Hope that helps Quote Link to comment Share on other sites More sharing options...
TSD Posted July 15, 2014 Share Posted July 15, 2014 Why do you want to make it complicated. Small 12v buzzer, positive wire connected to the sidelight 12V circuit, negative connected to the courtesy light switch circuit. If lights are on 12V is present, if door is open, ground is connected => buzz. Quote Link to comment Share on other sites More sharing options...
dave88sw Posted July 15, 2014 Share Posted July 15, 2014 because if his discovery is anything like mine, the door pin switches only make contact when they feel like it, my interior lights come on about 10 seconds after the door is open Quote Link to comment Share on other sites More sharing options...
JeffR Posted July 15, 2014 Author Share Posted July 15, 2014 because if his discovery is anything like mine, the door pin switches only make contact when they feel like it, my interior lights come on about 10 seconds after the door is open Mine are great at coming on, but they don't like going off Piggyback a wire from the headlamp feed into the power terminal of a relay, use the courtesy lamp as a trigger, and use it to power a car horn installed in the door pocket. Bet she would only do it once more : ) Good idea, however, I suspect my testicles would be removed (with a blunt teaspoon) and stored in a jar on the bedside cabinet..... Quote Link to comment Share on other sites More sharing options...
elbekko Posted July 15, 2014 Share Posted July 15, 2014 If you're going through all that trouble, how about only making them work with the ignition on? Quote Link to comment Share on other sites More sharing options...
ejparrott Posted July 15, 2014 Share Posted July 15, 2014 I've re-wired The 109 so that only the sidelight's can be left on, the headlights are ignition controlled. Ultimately they'll be LED lamps so they won't draw much power, and occasionally I want to be able to see by them without the engine on. Quote Link to comment Share on other sites More sharing options...
TSD Posted July 15, 2014 Share Posted July 15, 2014 because if his discovery is anything like mine, the door pin switches only make contact when they feel like it, my interior lights come on about 10 seconds after the door is open Well if you can't fix a door switch, you probably shouldn't mess with anything really complicated like a relay Quote Link to comment Share on other sites More sharing options...
Roverdrive Posted July 16, 2014 Share Posted July 16, 2014 :hysterical: Quote Link to comment Share on other sites More sharing options...
dave88sw Posted July 16, 2014 Share Posted July 16, 2014 Well if you can't fix a door switch, you probably shouldn't mess with anything really complicated like a relay Or maybe i'm not bothered about not having courtesy lights (and the irritating keys in beeper) but i would want a reliable lights on buzzer using a relay from the ignition switch rather than an unreliable door pin switch... Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted July 17, 2014 Share Posted July 17, 2014 You could fit LED sidelights, it'd take ages for the battery to go flat then Quote Link to comment Share on other sites More sharing options...
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