There are two fuse box locations on your 2014 dodge avenger. one is to the left of the steering wheel, in the dashboard, and controls a lot of the interior components, like the radio and lights. the other one is located in the engine compartment, near the air cleaner assembly. that box is going to contain the heavier fuses, like for your starter, and important ones, like the one for the ecm. you can often pick up a complete fuse replacement kit for your avenger for under $ 10 via amazon, or even at a local walmart. if you're finding that your relays are constantly blowing, this can indicate there's an issue with the electrical system, which you shouldn't put off looking at, as such problems tend to get worse, not better.
The 2014 dodge avenger fuse box is located in the "integrated power module" on the right side of the engine bay.