BMW Television Wiring harnesses vary slightly depending on the year model of your E39 5 Series. The photos to the left show a 2001 E39 Installation

Remove Navigation computer only AFTER the amber power light has gone out. It will go out after 90 seconds from opening door/trunk with the car OFF

Disconnect Blue power plug simply by pressing down on the release tab on top holding the black locking lever.

Connect NEW Blue power plug into Navigation computer, and original power plug into New harness.

Connect other end of harness White and Blue plug directly to TV module white and blue sockets