Section 2 - Preparing the Auxillary Port for Installation in Head Unit With any BMW auxiliary port kit, you will have to 'transfer' the wires from the kit's auxiliary plug to the existing head unit's auxiliary plug. Disconnect the three electrical connections on rear of switch center. Remove the center console switch center.This is done by sliding up the retaining clip and pulling the connector straight out of head unit. Disconnect the 'quad' block electrical connector on back of head unit.Pull the head unit loose so rear electrical connections are visible. Remove the two phillips screws securing the sound system's head unit to dashboard.Disconnect the three wiring connections behind the HVAC controller.This step can be challenging so be patient.keep gently prying, alternating sides. Using your plastic trim removal tool, carefully pry the HVAC control panel and lower trim loose from the dashboard.

Use a phillips screwdriver to remove the two screws anchoring the HVAC (heating and air conditioning) control panel to the dashboard.

With the help of a metal pick, remove the door lock electrical connector.

Once you get the end loose, the rest can be removed by hand. The easiest way is to start on the 'door side' of the trim. Using a plastic trim removal tool, remove the passenger side dash trim.Just take you time and only use plastic trim removal tools to avoid breaking or damaging any expensive parts. Removing the head unit is a relatively simple procedure. Section 1 - Removing the Head Unit A BMW auxiliary port installation on your E60 5 series vehicle requires removing the head unit so a new auxiliary input plug can be installed.

Bmw e61 ccc repair