Datsun Go Problems

I bought my first a brand new Datsun Go from Cmh Nissan Ballito in 2020,but had the most opposite experience that i was expecting to have with my new car.Firstly my boot flap had a rubber missing,so everytime i drove on a bumpy road or over a speedhump the flap would rattle at the back.I i formed the sales person and DP of the issue and waited about 4 months to get service from them.Secondly my front left speaker started giving me issues.As soon as i turned my steering wheel to the right,my speaker would cut off.I left it for a while hoping that it would come right as I'm not someone that usually complains about petty things.The speaker just got worse and when i went to the dealership and informed them of the issue they made me feel so stupid because they said their was nothing wrong and they've tested the speaker numerous times.About 2 days after the speaker started again and by this point i actually had enough.I phoned the dealership and they i formed me that my car will be booked in for a day so that they can check what the problem is.Yet again this issue was not yet resolved.I got to the point where i actually had to involve a male family member to go to the dealership to sort this issue out.After almost 7 months the dealership obviously knew i wouldn't stop coming back and they informed me that they booked my vehicle in at an audio shop for my speaker to be replaced.The day i went for the replacement of the speaker,the person at the audio shop informed me that the speaker wires weren't connected properly and since then i haven't had an issue again.Yet again,Cmh said there was nothing wrong with my speaker.Lastly, it has been a year now that I've had my vehicle and it actually started showing rust on the side of my windscreen...can you believe it!I will never buy a nissan or Datsun in my life again