Car radio code, please help

Anthony taylor New member Username: Tayloranthony Post Number: 1 Registered: Dec-15	Posted on Thursday, December 24, 2015 - 13:01 GMT My radio is B3 LOW CD part number 4s61-18c815-aa Serial number M385797 Please help, many thanks
Korab New member Username: Korab Post Number: 1 Registered: Jan-16	Posted on Friday, January 15, 2016 - 08:38 GMT My radio is mercedes benz sound 4000a Db1160w12949813. I need code}