1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Aux port using Stock Radio GSL-SE

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Old 05-08-11, 04:59 PM
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Cool Aux port using Stock Radio GSL-SE

Has anyone tried adding an aux port to a stock radio? My radio doesn't work, but i know my speakers do. I'd like to hook up my android phone to an aux port to hear through my speakers..does anyone know of a device or procedure that can help me do this?
Old 05-09-11, 11:52 AM
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If you had a working radio, you could use an FM modulator otherwise you will just need to get an aftermarket radio.
Old 05-09-11, 02:31 PM
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I'd like to keep the stock radio, even if it's not working. There isn't a way to splice some cables and still hook up that module? I know there are amps behind the seats under the cubby bins.
Old 05-09-11, 02:49 PM
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You will still need to get the stock radio work first. The modulator works through the radio and is set to a station like an FM transmitter but is wired to the back of the radio.
Old 05-09-11, 04:04 PM
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It is very possible..... Is it easy? Well, no.

There is not a way to do it without cracking open the radio and hard soldering in another port. If this is above your level, then I would just get a FM modulator as suggested above.
Old 05-09-11, 05:22 PM
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Does the tape deck still work? Use a tape adapter if so. If not, you can splice into the factory din cable inbetween the tape and EQ ports to add an aux input. You would also need to remove the little "sensor" inside the tape deck that switches the radio out of radio mode and into tape mode and make it an actual switch or just tie the two wires together leaving it permanently in tape mode. OR, leave it alone and insert a tape everytime you want to use it and listen to it grind away inside...
I had a spare radio to mess around with in my 'SE and tried this temporarily(adding an aux input) and it does work, and doesn't have as much high end hiss as using a tape adapter, AND leaves everything all factory looking...I've been meaning to revisit this after I find a way to incorporate an old mp3 player into my center console...
Old 05-09-11, 05:44 PM
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Its definitely possible. People have been doing it for a long time in some of the other car worlds (Subaru for example). Some of the newer Subaru cars have a funky shaped stereo that doesn't lend itself to aftermarket stereos, and they have no aux input. Enter the custom work. They do it differently than you have planned, but its the same concept one would think. Most of the time on Subarus I've seen custom aux inputs that go to the preamp board in the stereo itself, and you play a CD with a silent track on the whole thing as the "aux input" mode. The audio source (phone iPod, whatever) would play through the amp and out the speakers since there is no other sound coming out from the silent CD.

By "Doesnt work" what specifically do you mean? No power at all?

Assuming you have power to the amps and they still work (which they may not power up if the stock radio doesnt power up or work), what you need to do is figure out the wires for the amps behind the seats. Find which ones are the pre-amp input wires and splice into those and give that a shot. Its a fairly complicated system for the 80s between the audio fader control, the amps, etc so it wont be easy, but its definitely possible. The other option of course, if you have no power to the amps, would be to figure out the requirement, and false feed that power to them on a hidden switch (assuming the stereo doesnt send them power anymore). Then you would flip the toggle and run the audio input into them from the phone. Thus, completely bypassing the stereo and using only the amps for the sound.

~T.J.
Old 05-09-11, 07:34 PM
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You could just tap into the amps...But it would sound like crap, and volume control would be only through whatever your input device is. It's desirable to run through the radio so you can also utilize the EQ which makes a HUGE difference. I'm also unclear as to what doesn't work on the OP's radio.
Old 05-09-11, 08:18 PM
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Dug up a box of old to-do-projects, found some relevant things here...To tap into the stock system, there is a 8 pin cable that runs from the tape deck into the bottom left of the EQ. Inside this cable jacket, the yellow wire is your left channel, and the black wire is your right channel, and connect grounds the the sheilding grounds inside the jacket. INSIDE the EQ(on the other side of the port), the orange wire is the right channel and the red wire the left. If you chop open a headphone jack ended plug(aka heaphone cables) inside usually there is a copper outer sheilding over two smaller wires usually colored red for right channel, and white for left channel, and you can twist the coppers together for your ground. I also included crappy pics of the little switch inside the tape deck(it has a yellow and a blue wire) that is needed to bypass the radio and activate tape deck. Just by looking, it appears to switch off radio when yellow and blue's continuity is disrupted.
If you don't utilize this switch, and your radio works, or you play a tape to activate, you will get ghost signals of these in conjuction with your input's audio. Hope this helps...
Attached Thumbnails Aux port using Stock Radio GSL-SE-eqdincables.jpg   Aux port using Stock Radio GSL-SE-dineqcables.jpg   Aux port using Stock Radio GSL-SE-tapeswitch1.jpg   Aux port using Stock Radio GSL-SE-tapeswitch2.jpg  
Old 05-10-11, 07:02 AM
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Thanks for all the replies. The radio problem is real strange, it doesn't power on but when I hit the power button, I can hear the antenna go up and down..

I'll explore some of the pre amp options. Going to crack open the radio today to see what's up in there..wish me luck.
Old 05-10-11, 09:18 AM
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Ya, I just tapped into the tape deck harness. You can get headphone jacks that are switching, so my tape player even still works!
Old 05-10-11, 10:11 AM
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I did this on my SA stock Clarion stereo so I could use my ipod when I'm cruising.
It used the standard DIN aux port which when activated cuts out the radio and
lets the ipod play thru. Works very well and has really good quality.

Heres a link to how it was done. You may be able to do something similiar.

https://www.rx7club.com/showthread.p...ghlight=stereo
Old 05-10-11, 05:08 PM
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Originally Posted by t_g_farrell
I did this on my SA stock Clarion stereo so I could use my ipod when I'm cruising.
It used the standard DIN aux port which when activated cuts out the radio and
lets the ipod play thru. Works very well and has really good quality.

Heres a link to how it was done. You may be able to do something similiar.

https://www.rx7club.com/showthread.p...ghlight=stereo
I originally tried this method(the link) and finally concluded that the premium 3-part radios do NOT have another input...There are 3 ports(on the back of the top radio section), one isn't used if you have the joystick. From left to right (looking at the back of the radio) the first 6 pin port goes to the front amp. The middle 8 pin port goes to EQ, the rightmost 6 pin port goes to rear amp. All the ones I've seen with the premium system and joystick, only two ports are used: the left and middle one. Apparently only the front amp output runs into the joystick which then splits that din cable into a front AND rear input for the two amps.
To the OP, it might just be a fuse inside the radio part that is blown...If not, you should be able to find a replacement fairly easy as alot of the factory units are replaced with more modern ones. I myself like to keep the factory look/function and if your speakers are still good, it will sound surprisingly good. If your speakers are not good anymore, I have yet to find a suitable replacements. Most modern speakers available to replace the old have a much higher input wattage required than the old factory amps provide, and results in much distortion at higher volume levels.
Old 05-11-11, 09:01 AM
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Originally Posted by sevens4me
I originally tried this method(the link) and finally concluded that the premium 3-part radios do NOT have another input...There are 3 ports(on the back of the top radio section), one isn't used if you have the joystick. From left to right (looking at the back of the radio) the first 6 pin port goes to the front amp. The middle 8 pin port goes to EQ, the rightmost 6 pin port goes to rear amp. All the ones I've seen with the premium system and joystick, only two ports are used: the left and middle one. Apparently only the front amp output runs into the joystick which then splits that din cable into a front AND rear input for the two amps.
To the OP, it might just be a fuse inside the radio part that is blown...If not, you should be able to find a replacement fairly easy as alot of the factory units are replaced with more modern ones. I myself like to keep the factory look/function and if your speakers are still good, it will sound surprisingly good. If your speakers are not good anymore, I have yet to find a suitable replacements. Most modern speakers available to replace the old have a much higher input wattage required than the old factory amps provide, and results in much distortion at higher volume levels.
Well it is SA specific. Your mileage may vary on FBs. I'll bet theres some way to
do something similiar if your savvy enough with stereos and electronics.
Old 05-13-11, 09:15 AM
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Took the whole radio out and apart..and it will now never work again. There was a fuse inside the receiver section but it looked fine so i put it back. Then i reassembled it all and now it doesn't even power on the antenna..so anyone know of a good replacement radio that will be a perfect fit without breaking the bank? so much for the nostalgic look.... :|
Old 05-13-11, 12:04 PM
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Your best be would be to look for a good original radio in the fore sale section on here.
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