Took my brand new 2017 Ford Mustang to have front ...

Took my brand new 2017 Ford Mustang to have front and rear deck speakers installed with an amplifier. I arrived at the agreed upon appointment at 9 am on a Saturday. At 3:30 p.m. that day, I received a call from an employee there that was confused about what type of work was supposed to be done on my car. So, I had to tell him what the order was and realized that my car had been sitting there for 7 and a half hours without any work being done to it! They did not seem to think it was a big deal and implied that I would have to leave my car with them over the weekend. I mean I do work a job. That's the whole point of scheduling on a Saturday. After they maybe had realized it would be an inconvenience for me to be without my car for three days, they decided to just change out the speakers that day and that I would have to bring it back the upcoming Monday to install the amp. So, I arranged for someone to follow me to Rogers Stereo to drop my car off and be taken to work. They promised me that the car would be ready around my lunch time between 2 and 3 pm. I told them if it would take longer to please let me know so I could take my lunch later. I get off at 7 p.m. which is well passed Rogers closing time. I did get a courtesy call and was told that the car would DEFINITELY be finished at 3 p.m. So, I informed my supervisor that I would take my lunch at 3:30 p.m. I arrived at Rogers at 3:45 pm and they still were not finished! They actually needed a few more hours. I was livid at this point. Why did I not get another call about the progress of the work? The Rogers employees once again did not seem to think this was a big deal and showed no empathy about my situation. They thought by offering to drive MY car to my place of employment would be doing me a great favor and settle their mishaps. They claimed to have given me a discount for the inconvenience but it was over a hundred dollars more than what I was quoted. The install looked great but the speakers make a lot of vibrating noise. They were supposed to have install sound dampening material but, they did not do a great job with that. One speaker is quiet, one make's minimal noise, one make's a moderate amount of noise, and one make's a ton of noise. This limits how much I can turn my amplifier up and overall volume. I did not want to go back to Rogers to have them fix the issue because of the awful experience but I was convinced by friends and another car stereo shop to have Rogers fix the issue. I dreadfully took my car back to Rogers and told them what was going on. One of the employees, John, actually took the time out to come and listen what was going on. He said that he knew exactly what was wrong with it and would get it taken care of. I also showed him my receipt and proved that I was still under the 90 day warranty. I get a call later that day while at work and was told a different story about the speaker issues. John said that the noisiest speaker is actually "busted on the bottom part" and that the problem is that they do not have the exact speaker to replace in stock. He stated that they do have the exact one from display that he could sell me for $100. I went along with the offer because I was at work and just wanted the problem to finally be taken care of. I get down to Rogers stereo on my lunch break again and was ensured by John that the problem is taken care of. He said that it sounds much different than it was when I brought it to him that morning. He said it was like "night and day." Well, that was a lie. The speakers sound just as bad as they did before. Also, the passenger door is loose one end and a couple of screws were not replaced in that door. I found one of the screws. I paid $845 just to have maybe damaged passenger door and speakers poorly installed. This is has been the worst customer experience ever and I can not understand how a place like this is in business.