I've got basic sound option (dont think it's HiFi) and I swear it's terrible.
I've seen that Bavsound is really easy to fit in, you don't have to pay for it, you can do it by yourself but I doubt that it will make such a big difference.
I'm not sure which one is the best solution. The sound system is really important for me in a car so I'm trying to get a good setup but not to spend too much on it.
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