Usage Tips:6 Meter Radio Fakra Antenna Power to Android Head Unit 17+40 Pin Extension Wiring Harness For X5 M3 M5 E46 E38 E39 E53This universal extension lead is designed for customers who wish to change from their vehicle with the Sat-Nav head unit. Once the standard navigation unit is removed, you are left with two plugs. But they are not the 17pin or 40pin connections expected! Due to the design of the standard for Sat-Nav systems, the stereo connections are located in the boot.This leads to some confusion when installing an aftermarket stereo. This lead provides you with the opportunity to put the stereo wiring back to normal.Universal for all kinds of car multimedia unitPlug and Play6m long cable17pin + 40pin harness.Fakra radio antenna harness.Compatible model:This cable is used on the following vehicles when the BM54 stock radio is unplugged in the rear:for 3 Series E46for 5 Series E39for 7 Series E38for X5 E53Range L322 (2002-2004)Important:If your vehicle is equipped with a button or if the option is present on the display menu of the infotainment system, this power extension cable is NOT compatible. please don't buy it.Pay attention to the key points!! If there is "TONE SELECT" button in your factory radio indicates that it also comes with !!! Please don't buy it!!!Color: As ShownMaterial: ABSPackage Contents:2 x Wiring HarnessOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.