03 Hyundai Elantra gt the gas and temp gage are inaccurate. Radio lights up but does not go on. Clock and interior lights do not work and fuse keeps blowing.

look for main fuse panel under hood, there should be a charging circuit fuse check it

I have the same issue . My radio lights are on but my radio doesn't come on nor does my clock and my interior lights. This issue happened after someone jumped my car battery and put the jumper cables on wrong. I've changed the battery and checked all fuses fortunately all the fuses are good... I called the dealership mech and he told me to check the fuses again. Other wise it could be a wiring issue ...either way I am unsure.
I need help asap

Had this before and i found a fault on the fuse board ,no supply the printed circuit maybe as i didnt go any further i just looped it from another fuse that had power via ignition switch through the radio fuse and it all worked but the fuse for the radio wasnt the one i looped as that had power for the memory it was another one that done the interior light and a thin bit of telephone wire done the trick so check all the fuses for power ,pull them out and check with a little 12v screwdriver light thing from the chinese shop ,right star trek is about to start goodnight

You shorted something out. Check all fuses and relays. I think you blew a relay not a fuse.

Answer 2 described my problem exactly, & solved it
in my 2006 Hyundai Elantra.
I had put the black "fuse puller" looking jumper in backwards.
Reversing it brot my radio, clock, dome lights & remote back to working.
Thank You

Take/Tow your vehicle to an authorized Hyundai dealership and pay the diagnostic fee... they will tell you exactly what the problem is and the cost of parts/labor to fix it... at least this way you'll know what the problem is and what's required to fix it.

I found that while checking my fuses that i had pulled out what looked like a black plastic "fuse puller" that was actually some kind of jumper. I had accidentally re-installed it reversed. I reversed it back to its original position and all lights, clock, radio, etc.. work normal now.

fuse boxes are usually on the side or under the dashboard or under panels by the driver or passenger's feet

I found that while checking my fuses that i had pulled out what looked like a black plastic "fuse puller" that was actually some kind of jumper. I had accidentally re-installed it reversed. I reversed it back to its original position and all lights, clock, radio, etc.. work normal now.