Auto Air Conditioning & Heater Repair: electrical problem, auto electricians, audi vw

Question
I have a problem. No wipers, no heater blower, no turn signal, no fog lights, maybe more. Horn and headlights work. Heated seats work. I have the same car, 2000 audi s4. I put a kill switch the other day, and I got a big spark. It sounded like a blew all the fuses, but I checked the fuses, and they are alll fine. But I noticed there is no power to the fuses, so I was thinking a relay, I found the relays, just under the dash, does anyone know which relays/fuses I should check? And how do I know if a relay is burned or not? Does it show any sign or burned relay? Please let me know. Thanks, please txt me,  

Answer
We are a uk company with no specialised knowledge of your vehicle, nor are we auto electricians.

If that was my car I would be thinking a back-feed to the ECU. It may be the ECU thats sends the power signal to the fuses.

Best advice, take it to a main agent for Audi VW and ask them to plug it in to their diagnostic.
You have gone as far as you can yourself and more time and money could be wasted trying local garages who may spend two hours on it and still scratch their heads.

I am sorry we cannot be of more help but that would be our advice to our own customers

Regards