Just done one actually. One of the Dodge sidelights went dead open cicuit. The result melted in all the plastic insulator on the bulb holder. So I was left with the casing , inside was the right angle holder for the bulb fitting. I happned to have a couple of LED bulbs. They are one pole as opposed to two pole of the filament. So how to quickly get something working.
First - Solder a wire to the + point of the bulb. Diodes are polarity sensitive, there DIODES! Second - Solder wire to side of bulb. Third - Wrap whole thing in insulating tape to prevent short and also bring diameter up to the diameter of the hole in the right angle. Fourth- Force tape wrapped bulb into hole, add super glue to edge to fix.
Then wire on.
The result in a tremendous improvment on the old filament. As an added bling I glued reflective tape round the inside of the lamp.
I've also aquired two strips of LED diodes. These have been fitted by lossening the support bar of the front wings and slipping a couple of cable ties through. The strips are flat againgst the support and hidden. I have wired them into the sidelights. The result is in daylight you see nothing. When it gets dark, the strips light up the whole wheel well. No doubt of the width of the vehicle.