82110149391 -BMW Auxiliary audio Input for 3 Series with navigation

Earlier, I had installed a DICE kit to connect my iPhone to my 5, however it cause all sorts of problems with battery drain, and ultimately ended up costing me two replacement car batteries. I was despairing for a solution but found this little thing - something BMW should have built the car with in the first place but made it an after-sale option so dealers could charge you for an hour of labor.Installing was time consuming but easy. It took me maybe 4 hours, most of that spend second guessing everything because of lack of confidence :) The other work is guiding wires through somewhat narrow spaces, drilling holes for fitting the jack in the glove box, and just plugging the adapter into the back of the radio unit (easy).All in all a very worthwhile install, and anyone with a modicum of tinkering ability can do it themselves.

I have a 2003 e39 with a nav. Screw the dealer and $500 option, this took 3 minutes to install and worked as if put in at the factory. The aux setting magically appeared after installing this, even though I didn't do anything else, and it was literally as simple as this:1. Unscrew and remove screen3. Plug this thing in4. Put screen back in and screw it inI plugged the aux cord straight into it and made it come out below the cup holders, so that I just had a aux cord right there. No drilling or plugging in of cord necessary. Freaking amazing, wish I did this 5 years ago!!!

Due to the uncertainty of my purchase I researched the wire diagrams on bavauto.comAll of the auxiliary wires that BMW makes for their vehicles ARE THE SAME except for the connector pieces and pins. If you look at the diagrams the resistors are about 300kΩ which triggers the headunit to register an available auxiliary mode. This is available on ALL OEM aux cords.I DON'T FEEL LIKE PAYING 80 BUCKS FOR AN AUXILIARY CORD!!!Here's the wiring diagram: (page 14)[...]The connector piece on this was meant for an E46 M3, but I was able to splice new connectors to the cord. The ones that come with this (not the plastic casing, but the actual metal contact connectors <2.54mm pins>) were male. If they were female all I had to do was pull them out of the plastic and put them in the existing one on the headunit.I bought some jumper wires (2.54mm or .1" with female pin connectors) for 3.40ish on amazon as well so that I could connect the wires to the little plastic housing. The pins stick out of the headunit in the zed4 and connect into the wiring harness as opposed to the m3's where there's female pin connectors on the headunit itself.This is a way to save at least 40 bucks by doing some DIY. It will not degrade the performance of your audio if you do it right. You may solder or use butt splicers, whatever you like. I used solder in this case.***I later found out that I could have just easily made an Auxiliary cord. See this site for details. Full pictures, diagrams, and steps on "how to":[...]Hope this helps some of you!

It just works. The instructions that come with it aren't that great though - for example, they reference other documents that aren't included. I highly recommend browsing YouTube -- endless video instructions are available there. It's a lot easier to install this if you can see what you need to do.You'll also need some tools that aren't standard. Off the top of my head, you'll need a plastic car trim remover and a thin metal "key" tool to remove the GPS display. Again, YouTube is your friend.As far as the aux cable itself goes, it seems pretty high quality. The cable is wrapped in what I assume is a protective layer of cloth.

did not fit , also the seller is not cooprative

This OEM cable was a breeze to install on my '04 330xi with navigation. Pulled the screen out and the wire just connected right into the existing plug on the harness. Mounted my jack under the window controls next to the shifter for easy access. Piece of cake install and now I have better audio connection options using my phone. Only disadvantage is the volume is the only steering control that works. Skipping songs or stations doesn't work but that was to be expected. It also works great if you use the navigation from your phone or get a phone call because all the audio goes through the car speakers.

Dint take long before the wires started losing continuity. Sitting on the console, I would suddenly lose one side of the car's sound. Touch the cable and it would return. Happened on multiple devices, so it wasn't my iPhone that was at fault.

does not fit business cd unit; only works with the NAV head unit.