thanks everybody for this great thread , I'm doing from only rear PDC to front PDC retrofit + Gen2 PMA ,
I secured a used Gen2 PMA for 50Euros from ebay ( German seller ) , today I tested the parts , front PDC was chinese copy but it worked well , PMA module also programmed and coded . but as the gentleman said few thread above , the PMA sensors are not just normal sensors , I ordered the same part number ( 66209261630 ) from ebay but PMA module showed fault ( Incorrect sensor version ) .
did anyone found a cheaper source for those sensors , OEM is near 110 Euro each