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How to Install a Subwoofer in a BMW 328i E90

Model: BMW Serie 3 E91, E90, E92 - Years 2005-2013
Part: Speaker

This guide shows how to install a subwoofer in a BMW 328i E90. To perform the operation, you need to connect an audio amplifier and a signal converter. Access the car's audio control unit from the left side of the trunk. Connect the two clip connectors to the red/white and yellow/brown wires, which are the left audio wires. Perform the same operation on the red/blue and brown/white wires, which are the right audio line. Connect these connectors to the signal converter. Connect the power supply to the converter and place it in a protected area of the compartment. Connect all the wires to the amplifier and check the system's proper operation.

Updated on 8 June 2026 by ScegliAuto

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