Genuine BMW 433MHZ antenna amplifier.
This fits BMW X3 E83 models fitted with BMW Radio CD Option Code S648A
The BMW part number is 65203452098. Please check this against your VIN number using the BMW electronic parts catalogue to make sure it is correct for your car before buying. If you do not know how to do this, send us the last 7 digits of your VIN number and we will check for you.