Very Disappointed Customer

Bought a new Ford Ranger July 2019, started with Radio problems almost immediately. They have now removed and installed 5 radios but still with the same problem. I have walked into a wall contacting everyone to help me solve the problem, with nobody wanting to address the problem. Its a new Bakkie with faults, they had the bakkie many times with no resolve. Now suddenly they want to address the Diff which is faulty but what about the other problems, that are now almost a year old. I want what I pay for, a NEW bakkie.