[papajam]

Welcome to the BB, robertz!

It's impossible to say what you might need without knowing exactly what is wrong. Alfas are known for poor grounds and to a lesser degree, electrical connections so this would be a good place to start. I'm assuming that all the bulbs are okay?
If you'd like a color wiring diagram for your Spider, just send me your email address in a private message and I'll get it to you.