Resolved echoing issue by updaing the iphone baseband. The iphone bluetooth vol control is still missing when connected to car handfree but aleast no echo's.
I noticed same issue with my brother's Audi A4 but on my friends Kia the control are available.. interesting!!
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2022 BMW M3 xDrive | Isle Man of Green | 19inch/20inch M Forged Wheels, Double-Spoke 825M, Orbit Grey | Ultimate Package
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