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E85 / E86 Z4 (2003-2008)
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Old 01-04-2013, 04:20 AM
brock5ga brock5ga is offline
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Location: Monroe, GA
Join Date: May 2012
Posts: 96
Mein Auto: Z4
Installing E46 Aux Input in E85

I purchased an E46 aux input to install in my 03 Z4, which I have seen others install. The car had a factory ipod adapter when purchased. I want to leave it in place to charge my daughters ipod. The E46 adapter has a 10 pin connector and the ipod connector has a 12 pin connector, which matches the back of the stereo. I removed the pins from the 10 pin connector, and installed them in the 12 pin connector where they appeared to go. It looked as if they would either intertwine with the ipod adapter or 2 wires would go in the same connectors as the ipod connector, depending on where you put the 10 pin connector. Bottom line, not working. Can someone who has installed this tell me the pin numbers and wiring colors that the E46 aux. input should match up to on the Z4? Thanks
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Old 01-04-2013, 03:36 PM
SD ///M4's Avatar
SD ///M4 SD ///M4 is offline
(prev. SD335is & SDZ4MR)
Location: San Diego, CA
Join Date: Jan 2011
Posts: 4,471
Mein Auto: 2016 M4 Coupe | 2006 Z4MR
I just installed an AUX input in my car. I used the Auxiliary Input Retrofit Kit from ECS Tuning, BMW #65120153502, ECS Part# ES#180582 . The AUX input for the Z4 has only three pins which are installed in the 12-pin connector in the BLACK plug, not the 12-pin connector for the iPod adapter which is in a WHITE plug.

If you are looking at the back of the radio harness, the black plug (with a black 12-pin connector, Nav and Bluetooth) is in the lower right corner, the white plug (with a black 12-pin connector, iPod adapter) is in the lower left corner. If you don't have Nav and Bluetooth, then the lower right socket may be blank.

This kit includes the 12-pin connector as well as the black plug which plugs into the back of the radio harness. If you have Nav and Bluetooth, you have to remove either the 3 pins from the 12-pin connector in the kit or the existing 2 pins from the existing 12-pin connector and combine them. This kit includes a stereo mini plug on a cheap metal bracket which can be removed.

I should have bought the AUX input for the Mini as detailed in this post, which details the installation along with pictures: http://www.zpost.com/forums/showpost...80&postcount=5. It's about half the cost and appears to be the exact same thing. I've also attached a JPEG scan of a page that shows the pin outs from the installation instruction of a different OEM Aux Input Kit.

I also bought the Auxiliary Input Socket from ECS Tuning, BMW #84109237655, ECS Part# ES#2207518 to fill the hole in the under radio panel that I bought so I could use it to install a Homelink garage door opener. (The panel is no longer available without the AUX input jack hole already in it.) This takes an odd-shaped 4-pin plug in the back as below. Anyone know what the part number is for this four-pin plug?

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- Tom
His: 2016 M4 Coupe | Sakhir Orange Metallic | Black Full Merino Leather | CF Trim | M DCT | Adaptive M Suspension | 19" Black Alloy Wheels | ZEC | ZLP | ZDB | MPE | ED 5/13/16
Hers: 2011 335is Couipe | Le Mans Blue Metallic | Black Dakota Leather | Dark Glacier Aluminum | 6MT | ED 5/12/11
Also His: 2006 Z4 Roadster (E85) | Interlagos Blue Metallic | Black Extended Nappa Leather | Carbon Leather Trim | Purchased 7/19/12

Last edited by SD ///M4; 01-04-2013 at 04:47 PM.
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Old 01-05-2013, 03:02 AM
brock5ga brock5ga is offline
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Location: Monroe, GA
Join Date: May 2012
Posts: 96
Mein Auto: Z4
Thanks SD Z4MR. I didn't get the one for the Mini, but for the E46. It has a 10 pin connector instead of a 12 pin. It didn't look like it would lock into the connector, so I assumed since the ipod was also an add on, it would go into that connector. It appears that the connector that came with the E46 input will plug into the blank connector, just not lock. The attached file should give me the pin numbers I need to transfer the wires back to the connector and move it to the other side. I will try that and see what happens. Sounds like I should be fixed.
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Old 01-05-2013, 11:51 AM
brock5ga brock5ga is offline
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Location: Monroe, GA
Join Date: May 2012
Posts: 96
Mein Auto: Z4
Thanks. That is exactly what I needed. Moved wires to pins 3,4 and 10 as in the attachment and to the other side and now working. Now, just waiting for my coolant tank which just sprung a leak.
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