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Completed 4/21/2004

Install the BMW Auxiliary Audio Input Kit. This is something available from late 2002 production on. Basically, if you have the little black button in your trunk lid that says pre-wired for Sattelite radio, this kit should work for you. It allows you to add an auxiliary input to your factory BMW headunit and utilize laptops, PDAs, portable music players, etc to play through your factory stereo.

1 - Aux Input Kit (Input Cables)
     (TISCHER BMW $40 part #82-11-0-149-389 w/o NAV)
     ($40 part #82-11-0-149-389 w/ Nav System)

Phillips Screwdriver
Trim Fastener Removal Tool/Flathead Screwdriver
1/4" Drill Bit and Drill
Sharp Knife (like an Xacto)

I would rate this install as very simple. Just be careful around your interior pieces as not to damage them. This install is for the non-NAV system option. If you have the NAV system, it is very close, the only difference being the screws to remove the entire NAV unit and the actual harness plug is shaped differently. The rest is the same.

1. As always, disconnect the negative (-) battery cable in the trunk before doing any electrical modifications.

2. Starting with the trim above the glovebox, use a trim removal tool or a protected screwdriver to lift the trim at the seam (Photo A). The trim pieces are just pressed into place with friction and will pull straight away from the dash. Remove the trim piece. There are rods on the trim which slide into rubber grommets on the dashboard to fasten the trim. If either pops out, don't worry, they snap right back in.

3. Remove the center piece of trim above the radio. It will pull straight out (Photo B).

4. Remove the two (2) phillips screws holding the radio in (Photo C - Red Circles).

5. Pull the radio straight out and disconnect the large black harness connector (Photo D).

6. There is a blue tab which locks the smaller connectors into the bigger connector. Use a small flathead screwdriver to pull this tab away from the connector. You don't have to remove it all the way, but if it comes out, it will go back in no problem (Photo E).

7. Take the cable from the Aux Kit and feed the gray connector into the empty hole in the radio harness connector (Photo F). It will only fit in once direction.

8. Press the blue locking tab back into place, it will lock the new Aux Kit gray connector in (Photo G).

9. Run the other end of the Aux Kit cable down behind the radio and into the dash (Photo H).

10. Reconnect the radio and reinstall it. Reinstall all trim peices (they just push straight in).

NOTE: Now, this is where my DIY differs from the installation instructions that accompany the Aux Kit. If you choose to follow those directions and mount the jack in the glovebox, please continue using those instructions. I wanted to be able to not have any cables hanging out of my glovebox, so I chose to install the jack in the DSC button panel. Only continue if you would like to locate your input jack here.

11. Remove the shifter boot by pressing in on both sides and lifting up. You don't have to remove it, just release it (Photo I).

12. Under the boot are two (2) phillips screws, remove both. Lift up on the console trim and pull it away from the dash and to one side. Again, you don't have to remove this part either.

13. The reason is to get to all four (4) screws holding the center dash in (Photo K - Red Circles). You can pull out the storage compartment by pressing up on the interior of the compartment and pulling straight out. Remove the 4 dash screws.

14. There are two (2) electrical connectors on the back of the center dash panel behind the DSC buttons (Photo L). Disconnect them and remove the center dash piece with the buttons. Take it out of the car where you can work on it.

15. Remove the DSC buttons from the center dash by removing the two (2) phillips screws (Photo M).

16. On the back of the DSC button unit, on the end OPPOSITE the buttons, cut out one of the vent prongs. Be careful doing this, there is a circuit board inside this unit even though all the buttons aren't there (Photo N).

17. The cover on the front of the DSC button unit will pop off with a little effort, just work evenly around the edge. Remove it and locate the dots where the missing buttons would be. This is a good indicator of the center of the cover and will space the jack location correctly (Photo O).

18. Use a 1/4" drill to put a hole right in one of the dots on the cover. Drill from the back to keep it clean (Photo P).

19. Go back to the car and feed the Aux Kit cable end through the back of the DSC button unit and out the open front (Photo Q).

20. Mount the jack to the DSC button cover and secure it with its supplied bezel. Snap the cover back on the button unit (Photo R).

21. Replace the button unit back into the center dash piece and tuck the Aux Kit cable into the dash space.

22. Replace the center console trim and shifter boot. You are done! (Photo S). Reconnect your battery.

23. To use the AUX feature, press the MODE button until it reads AUX. Attach a music source and enjoy! (Photo T). If the volume is too soft or too loud on AUX, press your settings button (the one with the musical note) until it reads AUX LEVEL and adjust with the (-) and (+) keys to your desired sensitivity.


Photo A

Photo B

Photo C

Photo D

Photo E

Photo F

Photo G

Photo H

Photo I

Photo J

Photo K

Photo L

Photo M

Photo N

Photo O

Photo P

Photo Q

Photo R

Photo S

Photo T


If you have any type of portable music device, this is a great addition to your factory stereo. The sound is perfect and give us one more option when radio just won't cut it. It should be available on ALL cars!

  © MarvelPhx