Clash, congrats once again and good that you are gaining confidence in your driving skills. I am sure you will start manoveuring the car very easily soon. Regarding the brakes, i think you will adjust to it soon once you are comfortable & gain confidence. I think the sound is due to nervous braking as you are still learning. Horn pad is little hard & it is normal. You will get used to it. When you play from your USB, the controls can be made only using the keypads on the steering as it is controlled by Windows B&M. Radio disturbance could be issue with the reception or wrong band selection. You may check with your tass next time you visit them. Else, attend one of the next TFI meet and fellow TFI'ians will be happy to help you.