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  1. #1
    3,000 rpm - starting to feel the power Roadster7's Avatar
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    DIY: AUX input for OEM NA Type 1 head unit.

    Say you're me, and you actually like the look of the OEM radio, but want an AUX input. I've been using a cassette adapter for a while, but the audio quality is just horrible so I began looking for other ways to incorporate an external audio source. I began digging through some old threads and found that a few of them linked to an image/wiring diagram for an AUX input using the 13-pin CD connector in the back of the OEM Type 1 radio that most NAs came with.




    The image was hosted by a site long gone, but I was able to scrap it back up with the help of archive.org. The guy who came up with this diagram, Jeff Anderson is still around, and even replied to a few emails when I was figuring out how to do what. Diagram below.









    Basically, you are emulating the OEM CD player that some cars came with. If yours didn't, it came with a blanking plug that has the top 4 pins still there. You remove that plug, no audio. Replace it with the above, and you can control the audio source on the other end.


    I will include some actual photos at some point, but all of the parts required for this can be had from eBay or Amazon, wires are regular audio wires. I skipped the "Tie all wire shields together/ground" bit, and it works fine. I now have a switch hidden in the center console that lets me switch audio source from radio to RCA/AUX.
    :::::::::::PROJECT MOBY
    ::::::FORZA ROSSONERI

  2. The Following 4 Users Say Thank You to Roadster7 For This Useful Post:

    fwdtamiya (07-17-2017),NCGreasemonkey (05-03-2017),oldgrayleather (07-17-2017),tsingson (07-17-2017)

  3. #2
    3,000 rpm - starting to feel the power Roadster7's Avatar
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    1994 M Edition
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    Thanked 350 Times in 118 Posts
    Additional pics of this:





    :::::::::::PROJECT MOBY
    ::::::FORZA ROSSONERI

  4. The Following 4 Users Say Thank You to Roadster7 For This Useful Post:

    fwdtamiya (07-17-2017),kung fu jesus (07-17-2017),oldgrayleather (07-17-2017),tsingson (07-17-2017)

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