A planetary transmission includes four planetary gearsets, two of which are simple planetary gearsets and two of which are compound planetary gearsets. The cartridge assembly is configured to house a plurality of fasteners at least partially therein. A first sun shade panel is inserted between the window and window seal of the side window of a vehicle. The coalescing spheres are bagged within the first wall and can be removed through an external lid during cleaning and removal of coalesced oil. The enclosure may have a weight of approximately twenty-one pounds, and provide an attenuation of 70 dB to 80 dB for a 1 GHz signal.