Hello Mauro,
From your scarce description your "monitor" must be actually an over-functional
Android device. You should make sure it does support BMW's "CIC" (I presume it from your "original 6.5" monitor" but you'd better make sure what you have) interface to be compatible with your "radio"/controls: some sellers let you choose, some don't - they might just happen to omit this important detail rather than supply a truly universal unit
.
And don't put a dot after your signature.