Here's how to make one, these directions are for BMW E9s and 2002s, so your measurements for extension wires may differ.
Here's how to make one and install it.
The 3rd brake light is an LED strip 1 foot long Alpena 180°red with 60" of additional red & black wire soldered with heat shrink insulation at the joints. Then red & black alligator clips soldered to the wire ends. Then put little pieces of electrical tape around the wires to hold them together. It attaches to the upper center of the rear window seal with the wires run under the lip of the window seal to a hole under the parcel shelf. Then under the white fender welting, under the gas tank trunk board to the brake light tab and ground on the passenger side tail light.
Need a soldering iron, flux, solder, Alpena LED, extension wires, heat shrink tubing, electrical tape and alligator clips or tap into brake light circuit and ground.
Alpena lights are available at Advance Auto Parts or on ebay. They come in 180° and side light red. 180s are for low angle roof lines, side lights for steep angles.They have white logos and cut lines which I color out with Industrial Grade Sharpie.
I used to buy the extension wire, heat shrink tubing and alligator clips at Radio Shack.
Walmart now sells Alpena lights with a pin-&-clip system. There are 4 pins 12v, R, G, B, I keep the 12v & Red & clip off the G & B pins. Then the directions are the same with shrink heat tubing & soldering outlined above.
If you have any questions I'm happy to answer.
Here's how to make one and install it.
The 3rd brake light is an LED strip 1 foot long Alpena 180°red with 60" of additional red & black wire soldered with heat shrink insulation at the joints. Then red & black alligator clips soldered to the wire ends. Then put little pieces of electrical tape around the wires to hold them together. It attaches to the upper center of the rear window seal with the wires run under the lip of the window seal to a hole under the parcel shelf. Then under the white fender welting, under the gas tank trunk board to the brake light tab and ground on the passenger side tail light.
Need a soldering iron, flux, solder, Alpena LED, extension wires, heat shrink tubing, electrical tape and alligator clips or tap into brake light circuit and ground.
Alpena lights are available at Advance Auto Parts or on ebay. They come in 180° and side light red. 180s are for low angle roof lines, side lights for steep angles.They have white logos and cut lines which I color out with Industrial Grade Sharpie.
I used to buy the extension wire, heat shrink tubing and alligator clips at Radio Shack.
Walmart now sells Alpena lights with a pin-&-clip system. There are 4 pins 12v, R, G, B, I keep the 12v & Red & clip off the G & B pins. Then the directions are the same with shrink heat tubing & soldering outlined above.
If you have any questions I'm happy to answer.
