Genuine BMW part 61 12 0 390 422: Antenna adapter tubing. The number stamped on the part is 61120390422; BMW's catalog files it under the short number 0390422. You will find it on our Electrical shelf, under Auxiliary cable.
It fits the E46 sedan, coupe, convertible and touring (320i, 323i, 325i, 328i, 330i and M3, 1999–2006), with the M52, M54 or S54 engines — and the European-market versions.
BMW draws it on the Retrofit kit Settop-Box (03_2295) diagram. It weighs about 30 g (under 0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
