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Neons, Lights, Switches, Relays - FYI


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number50 
Member - Posts: 3
Member spacespace
Joined: March 11, 2008
Location: Ontario, Canada
Posted: April 03, 2008 at 7:22 PM / IP Logged  
Neons with open door
- wire your positive from the neons into the 12v positive (accy. Spot) on the fuse box
- take out the door peg that pushes in with a closed door and get to its wires.
- wire your ground into the wire that connects to the pin
The dome light is a constant circuit and always has 12v pos going to it. When you open the door that pin comes out and there is a piece of metal that makes contact for a ground. Therefore your neons and dome light will only have a ground when the door is open. If you want to go a step further and have the ability to keep them on after the door is closed then ….
- dig into the dome light and splice your neons wires into the wires between the switch and the actual light.
- if you don’t want the dome light, just cut its wire between the splice and the dome light
Multiple Neons on 1 switch
- run a wire from the power source ( battery or fuse block) to one side of the switch
- ground each neon or splice each wire together for one common ground
- take all neon power wires and splice them into 1
- put this power wire into the other terminal of the switch
Getting Power to neons, switches, anything…
- either go through the firewall to the battery or into your fuse box (instructions below)
- open your fuse box, find the fuse for your cigarette lighter (usually 20 amp).
- pull off the fuse, stick the wire over the connection/port
- put the fuse back on so the wire is between the fuse and the port
- usually your fuse should be like 1 foot from your power source
OR (easier approach for some cars)
- ignore the rest and just tap into your cigarette lighter. Find the wires behind the cigarette lighter and just splice your wires from the switch into there. Your cigarette lighter will still work fine because it has a 20 amp fuse.
Using a Relay
Relay’s are a type of switch to be used for many or large 12 volt accessories. If you just want to keep the small wire from a neon you can run it to a relay. Most relays are 4 prong, this is the usual setup. Relays make a clicking noise when powered so put them somewhere you won’t hear it. In the trunk maybe?
Ex: you want it to turn on with your system
     - use your remote wire between your head unit and amp as a signal wire
Ex : you want to run more neons than you music interface can
     - use your ground wire from the music interface as the signal wire
Power : send a wire from the power source to the relay. It should be large enough for your neon setup and fused. Most often you are looking for a 12 gauge wire if you have multiple neons.
Ground: wire from a ground to the relay
Accessory: a wire from the neons or accessories to the relay.
Switch/Signal: use a ground wire, acc wire, etc as the wire to signal the switch to allow power to the neons

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