Martin
Member
Registered: 15th Mar 04
Location: Dumpstable Drives: Aztec Sxi
User status: Offline
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i was just wonderin if there is way of gettin a flashing light in ma car, and getting it to turn off when the cars on. i've got a clifford bulb thing to hook some wiring up to. i will be gettin an alarm soon, i just want this done quick as im going on holiday, n there r lots of theivin sods about 
Does anyone know if its possible to maybe have a live wire, a resistor and use the RCA lead? just so when the cars not on, there wont be 2 positives, as the RCA will turn into a ground for the live wire? or am i barkin up the wrong tree entirely... If anyone has any other way of doin it, please let us know.
Cheerz 
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Dom
Member
Registered: 13th Sep 03
User status: Offline
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RCA lead, to your HU ?!?! 
wack at a close-circuit (think there the ones, basically, closed when no power goes through) relay from your ignition, and wire the LED to the relay - then when you switch the car on, led should go out.
However, wait til someone says something, as im not 100% sure on it  eitherway, you dont want to be grounding anything with your HU RCAs!!!
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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Just wire the ground of the LED to an ignition live as these go to ground when the igntion switches off. Give the LED a permanent live though.
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M2RTY
Member
Registered: 25th May 01
User status: Offline
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quote:
Originally posted by Richie
Just wire the ground of the LED to an ignition live as these go to ground when the igntion switches off. Give the LED a permanent live though.
does this work with other things? as i know leds only work 1 way round
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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It works with pretty much anything that needs a negative trigger like a pager or something.
What other thing would you like to use?
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Trucido
Member
Registered: 14th Jun 03
Location: Bristol
User status: Offline
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i fudged mine in my old car and put a switch on the led and just ran it from the power behind my head unit
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