TLDR: Parking lights and Instrument Cluster wont light up, fuse keeps blowing, help?
About 3 days ago I purchased a used 2000 Dodge Dakota Quad Cab 4wd. The first 2 days of driving it were great at night no problems what so ever. However as of today my parking lights(amber colored ones) and my instrument cluster will not light up when i turn my lights on, everything else is illuminated (odometer, blinkers, dome lights).
Now i did find a blown fuse in the parking light slot (slot 13 or 14 cant remember off the top of my head). I replaced the fuse for testing purposes and fliped on the lights and the instrument cluster lit up and the parking lights worked, so that rules out a blown bulb. Now when coming back from the gas station I turned my lights on then it shorted out again, but what was weird was it cut out the radios power then the radio came back on. I check the parking light fuse and it was blown again. Mind you i replaced the fuse just under an hour before this.
The previous owner installed a after market pioneer deck and speaker system in all 4 doors before i bought it from him, i am unaware if he did it himself or had it installed professionally(im guessing he did it himself). He also replaced the light switch and the Dim wheel himself before i bought the truck.
Any advice at where to start would be great.
edit: the previous owner mentioned something about this being a canadian truck and having day lights or something and explained that thats why he repalced the light switch. (Hope that sheds some light)