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what can i do to get much better sound than HK
Hi Guys
Got a 2019 m5 with the hk sound system - its so horrible that i cannot listen music on it.
Has anyone made it much better if so how? what do you need for example to add a sub?
Theres the bavsound speaker upgrade, has anyone done that? i dont want someone to cut my doors or anything so i guess this is the only viable option?
Thanks!
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