some sort of electrical problem

hi, so i have a 2006 Tiburon GT. When i first turned on my car today(right after i installed my front ark strut bar), my radio would not turn on, my clock was not on, the temperature keeps resetting it self to farenheit, and my car wont unlock/lock with the remote. I dont know what happened, but this started just today and every time i turn on my car. Any ideas? thanks.

oh and when the engine is off, instead of the fuel needle going to Empty, it goes to Full, and when i turn on the engine, it swings back to Empty and then back to whatever level of gas i have.

you have popped your transit fuse mate. its inside the fuse box behind the small panel under the drivers steering wheel .you cannot miss it its a big yellow push in tab with a fuse inside it pop out the blown fuse and replace it .