Possible short in electrical system?
 

So recently my dome light went out. At first I thought it was just the LEDs I had installed so I replaced the factory bulbs but it still doesn't work. I checked the contacts and they were not corroded or even dirty but I polished them anyways. The wiring isn't damaged and the connectors aren't loose. I don't see how they can get damaged.

Now my trunk light and the light in the start button is out. With the trunk light I thought it was the LEDs again. I replaced it with the factory bulb and it still doesn't work.

I haven't checked the fuses yet because I don't know how to remove it.

Could a short be causing my lights to be going out?