mcwiggin Posted January 10, 2007 Share Posted January 10, 2007 Ok so this thread is results and findings on coming up with a way to get AUX in on a Stock 2005 Subaru Legacy Head Unit. Thanks to drcaveman in finding the service manual for the 05/06 headunit which has complete circuit schematics for the head units.. To download the manuals: Manual 1 can be downloaded here (0505cqef1561l.pdf) www.mcwiggin.com/subaru/0505cqef1561l.pdf Manual 2 can be downloaded here (0505cqef1560l.pdf) www.mcwiggin.com/subaru/0505cqef1560l.pdf I had been posting under that topic but I think that it would be best to start a new topic to keep this information and my progress organized. So here is what I have so far. // COPIED FROM OTHER TOPIC Ok I think this is going to pretty easy actually! I looks like we can do this without and board mods at all! If we bring pin 2 on CN402 to ground that should enable satellite signal according to the main CPU. Audio comes down pins 4 and 8 and I am not sure yet how the left and right channels are deciphered. From there I think the satellite selector button should probably work to select satellite as a source. The button does exist (its that blank spot on the input selector switch that goes 4 ways.) You can make it work by opening the stereo and removing the piece of plastic that prevents you from pushing the button. I haven't tested this yet.. but it should work! I will post results as soon as I test it! If someone gets a chance let me know what they think is going on with the left and right audio signals signals (C402 - C405 are 1uf caps) http://www.mcwiggin.com/subaru/SatInput.png Block Diagram showing the connections to CN402... As you can see there is more here than just the steering wheel controls. http://www.mcwiggin.com/subaru/Block.png Link to comment Share on other sites More sharing options...
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