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Installing Underdash Neons .

 

 
 

 

     
 

Materials:

4 x Neons (one shown)

10 amp cable

Inline fuse holder and 5 amp fuse

Toggle switch

2 x cigarette lighter socket double adapter (one shown)

Cable (zip?) ties

Insulation tape

Crimp links & crimp lug

 

Tools:

Pliers

Crimper

Philips head screwdriver

Electric soldering iron

Electric drill and 10mm bit

 

   
 

Install the four neons.

Identify where you want to install the lights and cable tie them in position.

 

Drivers side (remember mine is right hand drive):

 

   
 

Passenger side:

 

   
 

Rear is installed under the driver and passenger seats:

These can be cable tied to the springs.

 

   
 

The wiring can be now run to where the sockets are to be installed. A good place is behind the centre of the dash where the ECU is. Just remove the small kick panel near the firewall by removing the one plastic panel plug.

The wiring for the front 2 is easy and the wiring for the rear lights can be run through the centre console. Remove the 4 screws, lift off the back section of the console, feed the wires though past the hand brake and gear stick into the cavity where the ECU is. The back wires can be fed under the console as the photo (note that the seat is in the fully forward position and when adjusted back, these wires can’t be seen.) Cable tie any excess wires neatly in the cavity.

 

   
 

Ok so now you should have the four cigarette lighter plugs in the cavity and all we need now is a power supply, ground wire and switch.

A convenient place to pick up a ground is a Philips head screw holding the bottom corner of the dash, just above the fuse box. Install a crimp lug to the wire, install it onto the screw and neatly run and cable tie the wire to the centre cavity where the plugs are.

 

   
 

Next, get the 12 volt double adaptors and cut the male plugs off. Strip back the wires on all 4 sockets, join them together (positive to positive, negative to negative) and crimp some crimp links on the cable.

* You may need to unassemble the male plugs to identify which wires are positive and which ones are negative. Positive goes to the small pin in the centre of the plug and is usually marked with either a stripe or being ribbed. Reverse polarity may damage equipment so it is important to make this connection correctly.

Note that these cables are small and all 4 wires can fit into one crimp link.

Please note picture only shows 2 sockets but 4 is needed.

 

 

 

 

 

 

 

 
  Crimp the new ground wire to the negative wires from the sockets.      
 

Identify where you want to install the switch. I chose the centre console under the hand brake as per the photo. Remove that section of the console (as previously), drill a suitable sized hole and mount the switch.

Cut a length of wire long enough to reach the centre cavity and another long enough to reach the fuse box. Feed these wires past the gear stick and connect one wire to each side of the switch. (Depending on the type of switch you have you may need to install spade type crimp lugs, crimp links, or they may have screw terminals.)

Reinstall the centre console.

Connect one wire from the switch to the positive wires from the sockets.

Plug in the 4 lights to the sockets and cable tie neatly in place.

Run the other wire from the switch to the vicinity of the fuse box and cable tie neatly in place.

Reinstall the kick panel.

   
  Using a crimp link, join the end of the new wire to the inline fuse holder. Install the fuse.      
 

Disconnect the battery.

     
 

At the back of the fuse box, at the top is a White – Red wire that is larger than most of the other wiring. This is the power supply to the fuse box and is constant 12 volts.

Using a sharp knife (or razor blade) carefully strip off about 20mm of insulation being careful not to damage the copper conductor inside. Strip back the wire from the inline fuse holder, twist around the newly stripped White – Red wire, solder using the soldering iron, allow joint to cool and tape with insulation tape.

   
  Check all wiring is neat and secure and reconnect battery. Done.