Aux out mod for '99 Tape Deck

i might have a subaru harness from the hu i got from gabe in the back of one of the cars at my house next time i crawl under the tarps ill look for it and you can have it for like 5 bucks

 
Nate,

I have an oem '05 STi 6-disc changer laying around, no visible AUX, but if it can be modified to help you out, and if it fits, let me know via PM, & I'll hook you up with it.

 
I bet you could mod it to have an AUX, it just depends how much work it is... I mean I got an AUX working on the stock '96 radio. But by the time I got it working, it wasn't worth it.

 
...Being as Nate's a " broke high school kid", I figgered' if I could, I'd help him out.

If he needed some 850cc RC injectors, I could be more help, lol!

 
http://forums.nasioc.com/forums/showthread.php?t=1818732

I'd be up for trying this
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. The only thing is that I'm not sure I'd like to have the CD player running a blank CD while only using an MP3 player... I feel like it would be bad for the life of the head unit.

edit: woah woah woah, injectors?
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Aw, screw the life of the h/u, I'm giving it to ya.
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And, by the time it shats, you'll have the cake for a new h/u, an A+ single-DIN is only $300, like my Kwood 993.

Now, duzzit' fit in your dash? It's a silver "brick" w the 4ch. amp built in.

As to 850s, you'd need a walboro, and I don't think an n/a car would benefit.

I'll look about and see what's in the bins Nate, & if anything pops up I'll let ya know.

 
I was kind of joking about the injectors
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. Do NA cars not gain much because they can't get enough air in to keep up with the fuel?

You've got a PM incoming.

 
Finally got the radio completely opened up after an hour or so, so I have access to both sides of the PCB. The tutorial I was following said that the required pins were labeled, but mine aren't,
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. I'll be doing some hunting, trace following, and googling before I can solder the wires on.

I have the audio cables already, I'm going to use a headphone extension cord and mount it in my ash tray, then just use an aux cable. This way I can remove the cable and it will look clean.

 
Finally got the radio completely opened up after an hour or so, so I have access to both sides of the PCB. The tutorial I was following said that the required pins were labeled, but mine aren't,
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. I'll be doing some hunting, trace following, and googling before I can solder the wires on.I have the audio cables already, I'm going to use a headphone extension cord and mount it in my ash tray, then just use an aux cable. This way I can remove the cable and it will look clean.
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Are you doing this to the stock radio?

Was a bit of a PITA with mine... I didn't follow a tutorial though, just sort of figured it out...

 
I'm doing it to a stock 2005 STI radio.

Apparently its got a built in amp or something that makes it more complicated, but I could be making that up (its early...).

Is there a specific component that should be on the back of the PCB where I should be soldering?

 
Can anybody with electronics know-how help me out here?

Here's my posts on Nasioc:

massive pictures incoming... If you see an area that looks promising, I can take a close up of that spot if needed.





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I can't tell where you need to tie in for an aux input, but I bet it's likely that the missing "IC302" is for the 5th-channel subwoofer output found on some models.
Some Subaru HUs have a "switcher" IC that selects which audio source plays. If you can find that, you can follow the traces to find a convenient spot to make your mod.
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How would I find this "switcher" circuit?

 
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lol

5th grade photoshop skills ftw? I stole the watermelon from an online cartoon. Don't ask
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.

Looks like a fun project. Wish I was closer, I'd come help ya out.
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Thanks. Right now I just have to figure out how to figure out where to solder the aux input to
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.

 
lol5th grade photoshop skills ftw? I stole the watermelon from an online cartoon. Don't ask
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.

Thanks. Right now I just have to figure out how to figure out where to solder the aux input to
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.
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do you at least know how how to solder. And at that, solder little traces on a board without the solder going everywhere and making a mess?

You can usually find out where either the radio or cd player goes into the amp section of the radio and put a switch on it. To switch between, say, CD and your aux in.

Sometimes if it is all in the same board it can be a PITA though... (this is how the stock radio on my car was)

 
Yes I can solder. Not amazingly, but I'm confident that I can solder on this board, otherwise I wouldn't have started the project.

The only thing I can think of now is to plug the head unit in and start playing a CD, and test lots of pins with a multimeter and see what happens. I have no idea what to look for though, and I don't want to eff anything up.

 
Yes I can solder. Not amazingly, but I'm confident that I can solder on this board, otherwise I wouldn't have started the project.The only thing I can think of now is to plug the head unit in and start playing a CD, and test lots of pins with a multimeter and see what happens. I have no idea what to look for though, and I don't want to eff anything up.
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Since I was doing it with my stock one, it was cassette. So I made a cassette that played a certain frequency, and different on each channel. So I probed around for that with my oscilloscope.

 
So that should work with a CD as well?

I'd just burn a CD that switches between 3 frequencies. frequency 1, 2, 3, 2, 1, 2, 3, etc, changing every 2 seconds or so.

 
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