Hi every body, first post on what looks a great site so here goes.
I have a 94 golf cabriolet 2.0lt (pink Floyd), it has a sigma s30 alarm fitted but in went into immobilizer state and the previous owner had it disconnected, I don't have the four digit code for the key pad or the wiring diagram

.
Is it worth try to get it fixed or should I take it all out and start with a fresh alarm system ?
Cheers
Pink Floyd