Here are the directions to do the tail light mod, I did it, works great, have more light when Brake is Pressed.

http://www.tibimmer.com/taillightmod.shtml

Although I would not recommend soldering the wires. I'd be cautious of melting the plastic standoff supports that hold metal conductors.

I found the screw method with a wire tie to work quite well.

you are very right if you don't know howto solder then you should find someone who does, because if you heat the metal up to much you can melt the plastic. But if you knowwhat you are doing then there is no danger

You know, it's funny, I always told myself "since i don't have rear fog lights i outta double up the brake lights". Has anyone seen their own ass when driving lately? :P

It's weird, i had a burned out bulb and I was having one of my friends press on the brake pedal and lo and behold, it's already doubled up. Any ideas? I'm the only owner of the car...

We performed this on my son's 1997 328ti and we now are going to do the same on his 1996 318ti.

Thread is almost 20 years old. :)

...and still useful!