Electrical Problems

Hi guys

This is my first post here, great forum, had been visiting for a few weeks now, writing from Bogota, Colombia. I have a big problem with my car.
I bought a 2001 A3 1.8T just two months ago, to replace my 99 Civic SI, which btw in 6 years gave me zero problems.

Only 2 months with my Audi, I have a big electrical problem. And it seems electrical problems are a little common, which doesn't make me too happy. Don't get me wrong, the car is great, mine only has 40k miles and its a 2001. Its a much more quality car than my previous car, the Civic, but frustrating that I see so many problems in the forum.
Anyway, about the electrical problem, first a couple of weeks ago, my reverse lights (white) stopped working. For no reason, checked the bulbs, the fuse, they were good.
A couple of days ago, several things stopped working. My horn, the corner lights, the AC, the windshield whipers.
Again checked the fuses, all working, including those in the battery compartment.
It seems like the only option now is to take it to the dealer, and well here in Colombia, its ridiculous what they charge at Audi, people avoid it unless there is no other option.
I would like suggestions on what to try before taking my car for a $500 checkup, how I can check relays or what else.
I appreciate anyones help, and sorry about any deficiency in my english grammar.