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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 03-26-2007, 12:11 AM   #101
bimmer jon
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i just finished this mod. the AUX works great. its slightly different then what was listed above for NAV equipped cars. the pinouts are different on the newer BM flat pin radios.

i was driving today and realized that my tape player and cd player aren't producing any sound when i put it in those modes. I left the one connector unplugged on the AUX side so I could put the new connector in, i'm thinking that the pins on the connector i didn't put in control the sound for the CD and tape.if that makes any sense
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Old 03-26-2007, 12:30 AM   #102
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Wow, that guy really got into it. What are those, resistors? And why?
2x resistor + 1x condensator. i would say it is there to make radio thing there is something connected even nothing is connected to aux. and also it shoul solve your problem with sat radio
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Old 03-26-2007, 12:35 AM   #103
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Originally Posted by bimmer jon View Post
i just finished this mod. the AUX works great. its slightly different then what was listed above for NAV equipped cars. the pinouts are different on the newer BM flat pin radios.

i was driving today and realized that my tape player and cd player aren't producing any sound when i put it in those modes. I left the one connector unplugged on the AUX side so I could put the new connector in, i'm thinking that the pins on the connector i didn't put in control the sound for the CD and tape.if that makes any sense
How do you have a tape and CD player? The tape leads are in that 12-pin black connector:

Pin No. / Wire Color / Function
1 / Tape left +
2 / Tape left -
3 / Left Connection for AUX Input
4 / Right Connection for AUX Input
5 / NAV / TV Audio +
6 / White-Black / Phone audio + Positive
7 / Tape right +
8 / Tape right -
9 / No connection
10 / AUX Input Ground
11 / NAV / TV Audio +
12 / Brown-Black / Phone Audio - Groundv
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Old 03-26-2007, 09:09 AM   #104
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2x resistor + 1x condensator. i would say it is there to make radio thing there is something connected even nothing is connected to aux. and also it shoul solve your problem with sat radio
2x condensors (capacitors) + 1x resistor... It looks more like a high pass filter and line load balance but it could also serve that purpose as well.
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Old 03-26-2007, 10:04 AM   #105
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2x condensors (capacitors) + 1x resistor... It looks more like a high pass filter and line load balance but it could also serve that purpose as well.
i have done it and it finaly works. radio shows aux always. doesn't matter if source is connected or not.

after many pics seen on google i am sure that oem aux cable has those too...
it will surely help hayabusa55 to solve the problem with sat radio
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Old 03-26-2007, 04:06 PM   #106
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The sat radio problem seems to stem from having another power source in the car which alarms the radio and causes it to disable AUX from what I understand.
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Old 03-26-2007, 04:22 PM   #107
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i understand.... ma danas sam se malo jebao sa letovanjem pa probavajuci sam saznao da ti rezistori i kondenzatori mogu bas da sprijece tak kratki spoj koji gasi aux u tvom slucaju....
(sorry, my english is not so good. hayabusa55 understands me, so he can translate it)
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Old 03-26-2007, 04:39 PM   #108
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Srle, go here: http://forum.e46fanatics.com/showthread.php?t=452928

I understand, I may check it out again later. I'm out of town so it'll have to wait at least until next weekend. Thanks for the tip though!
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Old 03-27-2007, 07:26 AM   #109
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Can someone please point me to where i can find out how to do this if i have a nav screen fitted, how would i add AUX to this?
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Old 03-27-2007, 01:10 PM   #110
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hey i understood too. nice 1 srle
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Old 03-27-2007, 04:27 PM   #111
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joe da cro, you too: http://forum.e46fanatics.com/showthread.php?t=452928
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Old 03-28-2007, 03:27 PM   #112
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thought id give some insight to anyone also doing this diy. i wanted mine SUPER hidden so i put it in the storage compartment using a connector from radio shack similar to the oem one.
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Old 03-28-2007, 03:42 PM   #113
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Here is my OEM one and my placement.
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Old 03-28-2007, 06:27 PM   #114
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Quote:
Originally Posted by tom @ eas View Post

Pin No. / Wire Color / Function
1 / Tape left +
2 / Tape left -
3 / Left Connection for AUX Input
4 / Right Connection for AUX Input
5 / NAV / TV Audio +
6 / White-Black / Phone audio + Positive
7 / Tape right +
8 / Tape right -
9 / No connection
10 / AUX Input Ground
11 / NAV / TV Audio +
12 / Brown-Black / Phone Audio - Groundv
Hello,
This is my first question.
What are pins 1,2, 7 and 8? So that they serve?
I want to make Line OUT amplifier to adapter connects to car radio.
Thanks and sorry my english is not very good.

Last edited by cota49; 03-28-2007 at 06:30 PM.
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Old 03-28-2007, 07:30 PM   #115
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Hello,
This is my first question.
What are pins 1,2, 7 and 8? So that they serve?
I want to make Line OUT amplifier to adapter connects to car radio.
Thanks and sorry my english is not very good.
This is a pinout for the radio, not the amp.
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Old 03-29-2007, 02:48 AM   #116
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This is a pinout for the radio, not the amp.
for the radio?
Could You explain it something more?
As Can I have line aux for ampli?
Thanks for all.
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Old 05-19-2007, 05:41 PM   #117
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help needed for nav screen HU

I know this question has been asked, but I didn't see any answers posted.

I have a 07/00 small screen HU (4:3 ?), anyone can share how I can DIY AUX for audio/video for ipod video

please help

Last edited by omegaoracle; 05-19-2007 at 05:43 PM. Reason: typo
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Old 05-21-2007, 03:38 PM   #118
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FYI ... other sites I have seen show the need for (as previously mentioned) 2 capacitors (.22uF) and a resistor (330kOhm, min 15V).

These are obviously not necessary, but can't hurt - and are shown in the BMW documentation for the cable they sell.

MANY different connectors from computer parts can be used for the part that interfaces with the headunit. IDE cables for one have the proper pin spacing for this project. You'd obviously have to hack it up to get it to fit, but it would work. I'll be completing mine tonight, I will report back with any new findings. I will be using the caps/resistor method and probably an IDE cable, unless I can find something that accommodates larger wires.
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Old 05-21-2007, 03:42 PM   #119
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BMW Installation Doc for the cable they sell:

http://www.bmwmotorsports.org/pdf/BM...stallation.pdf

Thread with good technical info:

http://www.bimmerfest.com/forums/showthread.php?t=76934
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Old 05-21-2007, 06:17 PM   #120
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To connect to the headunit, I wound up bastardizing a USB connector for a USB add-on that plugs directly into the motherboard. It was a 2 row, 5 per row adapter that fit perfectly. The soldering is very tedious, but the mod worked like a champ.

You could also use those connectors used to plug the speaker, power wire, HDD activity light, etc onto a motherboard of a PC. As aforementioned, the IDE cable idea would work too, but you would have to cut 2/3rds of the adapter.

My local Radio Shack had nothing there for me to use for this, so find a computer geek ... he's bound to have a plenitude of things you can use.
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