Cold Cathodes w/ interior lights
Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=79328
Printed Date: July 14, 2025 at 2:28 PM
Topic: Cold Cathodes w/ interior lights
Posted By: sl@cker
Subject: Cold Cathodes w/ interior lights
Date Posted: June 19, 2006 at 12:43 PM
Frist off, this is my first time doing an install like this so i just thought that i'd confirm my plans before going ahead... I'm planning on running footwell cold cathodes from oznium.com and i'd like to have them come on with the interior lights . Where is the best place to install the realy to turn them on/off? I was thiinking just inline with the existing lights, when they come on they will trip the realy turning the cold cathodes on, correct? BTW the car is a '99 Grand Am... Thanks in advance, Phil
Replies:
Posted By: djfearny2
Date Posted: June 19, 2006 at 12:57 PM
yes but cold cathode lights dont take much joice so depending on the number of lights you may not need a relay. it would be safer but not 100% nec.
relay hookup with ground trigger
pin 85 ground door trigger wire
pin 86and 87 constant fused at 10 amps
pin 30 output to cold cathode lights
pin 87a not used
possitive door trigger
pin 85 input from door trigger
pin 86 ground to chassis
pin 87 12 volt fused
pin 30 output to lights
pin 87a not used.
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Jon
Installer/Help Technician
---coral springs florida---
mecp certification is not always needed. I have it and it has not helped me out at all. my experience out shines it.
Posted By: sl@cker
Date Posted: June 19, 2006 at 1:05 PM
Thanks for the quick response! I know i could do it via the door trigger, but i was wondering if i could just use the wires going to the existing footwell lights to trigger the relay...Would this work?
Posted By: CTOH
Date Posted: June 21, 2006 at 8:56 PM
I used alot of cold cathodes in an H2 and fed the invertor directly from the interior light harness at each door,,,they don't require much power at all,,,
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