Loudspeaker sound insulation — a genuine BMW part, number 65 13 6 908 378. The number stamped on the part is 65136908378; BMW's catalog files it under the short number 6908378. You will find it on our Instruments & Electronics shelf, under Navigation system.
It fits the E46 compact (316ti, 318td, 318ti, 320td and 325ti, 2001–2004), with the M47N, M54, N40, N42, N45 or N46 engines.
BMW draws it on 2 diagrams, among them Single Parts F Front Door Stereo System (65_1049) and Single Parts F Front Door HIFI System (65_1050). BMW's catalog calls for two of these at each place it is fitted. It weighs about 184 g (0.4 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
