Recently bought a used Valenti style 4th brake light (iJDMToy brand) and I wanted to install it without damaging any existing wiring. So basically without splicing the wires on the tail light harness or the wires on the tail light. The annoying part was trying to find out where to get connectors that fit and figuring out exactly which pin on the connector was for what. All of the guides I found online relied on colors (i.e. "connect blue wire to green wire"). Color coded guides were a pain in the ass since different 4th brake lights and even different twins have different color wires.
Anyway, with this guide you can make your own harness and figure out exactly which wire to splice for fogs and brake. Nothing fancy, not many pictures. Ask if something isnt clear.
Parts needed:
Around 1ft of 20-22AWG wire.
Your choice of splices/taps. I used Posi-Taps.
Wire crimping + stripping tool. I used a combo tool from VISE-GRIP.
Connectors (
http://www.ft86club.com/forums/showthread.php?t=58513):
http://www.easternbeaver.com/Main/El...ectors.html#TS
1x "4 Position TS 090 Male Connector" (Part# 4P-TS090-M)
1x "4 Position TS 090 Female Connector" (Part# 4P-TS090-F)
Making the harness is simple. Strip the wires, crimp the pins on, and then insert into connectors. Arrange the pins 1 to 1 so one wire is in the same position on both sides. Should end up with this:
In the above picture I already have my Posi-Taps in place on the right wires. After some poking around and testing, this is what each pin on the driver side male tail light connectors correspond to:
NOTE: This is for a USDM car. Pin out for AUDM, JDM, etc. may vary.
Pic of my connector for reference:
For the iJDMToy light, there's a brown wire and a blue wire.
Brown wire -> splice into "Tail light"
Blue wire -> splice into "Brake light"
I managed to do it without lifting the car at all, just laid a moving blanket on the floor and sat on it lol:
Car parts and trunk contents were all over the place. Other customers of the parking garage kept giving me weird looks
