Is Anyone Hiring? Permission Received From Andrus to Post

Has anyone here ever worked with like Carmax or Carvana or something like that when it comes to selling your car? I am going to have to sell my Mustang in order to stay afloat. It ran fine up until about a month ago. Then the fuel pump fuse kept blowing, so I thought the fuel pump was bad and I had it replaced. It ran fine for like a week after and then that fuse kept blowing again. It's got to be an electrical problem. I can't afford to have it fixed and I know nothing about cars. It's a 2013, sky blue, appx 50k miles. I am hoping I get $3-4k from one of those car buyers.
I worked at carmax as a part time gig and did really well.