I see a lot of spliced wires in your pics. Proceed with caution!

 

I Finally figured out what was causing the problem. Found out that the windshield had been changed some time in the past. Its been pretty dry here in norway since i bought the car, but when it finally started to rain i saw the water was coming in to the car. Figured the header joints would be a good starting point, so i picked apart the dashboard. OH MY GOD! at one point there must have been ALOT of water inside this car. previous owner has been in there and tried to solder some of the connections and has done a horrible job at it. Luckily only two of the header joints were bad plus the bodgy soldering. Soldered the bad connections together using the RAVE manual and bingo! Turn signals work perfect + the horn and cruise control work now. For the record; I`ve fixed the leaky windshield, so hopefully no more water will come in to the car. Thanks for the help guys.