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Aux interior door light wiring

27539 Views 38 Replies 17 Participants Last post by  FatJohnson
Here is what I did to make my aux LED lights come on when I open the door. I have yet to install the switch but when I do I’ll post the pics.

My objective is to have additional lighting near my feet when entering and an optional manual on switch.

Do this and any mod I post at your own risk.
First: Disconnect the battery.

1. Open fuse box and find the red wire going to connector 1A pin 4 on driver’s side junction box. NOTE: This is the power or +12V and will turn off after some time (10 minutes?). It is the same power that goes to your dome light. This is fused through the 10A "DOME" fuse and should not require an additional fuse if you are using an LED that will draw less than 1 amp or so. If you are not sure of your amp draw then an additional fuse is suggested.

2. Install T-tap onto red wire.

3. Find a convenient ground point if you want your lighting on for 10 minutes after the door is closed (not my preferred option!!).

Or connect your switch to connector 1A pin 8 for the door ground and connector 1A pin 7 for the always on ground. (I have not installed my switch yet; sorry no pics of this).
Don't forget to reconnect the battery!

Here's my modified wiring diagram:
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I am going to look for a connector that I can splice into this ribbon cable. These are pins 7, 8 & 9 that run the dome light operation. If anyone has any ideas please let us know.
Hi Guys-
They make IDC (insulation displacement connectors) that should be able to clamp onto this ribbon cable and allow you to connect other wires into them. You'll need to take a careful measurement of the center to center spacing on the ribbon cable to get the right kind. These are similar to the connectors on the ribbon cables for disk drives in your computer. Allied electronics or AllElectronics are good places to find stuff like this. If you get the flat style, You can usually clamp them onto a ribbon cable using a pair of channel-locks if you're careful.

You might also be able to "split the loom" with a razor knife and get to each wire individually. Then its pretty easy to splice into them.

Hope this helps and thanks for sharing your info.
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