pairing rejected

Hello there, I've recently flashed the xiaomi.eu_multi_cancro_6.2.4_v7-6.0 ROM on mi Mi 4W which is great. There was one thing that I hoped this would fix (the same issue I had with the Stock ROM). I have in my car the Blaupunkt Drive Free 411. Pairing works OK (meaning I put the DF 411 in...