I have a 70s model of a shaft-style car radio that runs AM/FM. The radio outputs are going to an equalizer which leads to 4 speakers in the vehicle. I want to add an aux/mp3 solution to the system. Is there any way to do it? I usually work with automotive wiring so I can do simple splicing and soldering. Any information or links would be much appreciated. Thank you!

 

I have a 70s model of a shaft-style car radio that runs AM/FM. The radio outputs are going to an equalizer which leads to 4 speakers in the vehicle. I want to add an aux/mp3 solution to the system. Is there any way to do it? I usually work with automotive wiring so I can do simple splicing and soldering. Any information or links would be much appreciated. Thank you!

You can take a signal out from across the volume pot, but whatever you feed in there gets mixed with whatever's coming out of the demodulator.

 

Add a switch, blocking cap and connector (only one channel shown) as above.

 

View attachment 150227
Add a switch, blocking cap and connector (only one channel shown) as above.

Not much left on AM, and FM is giving ground to DAB - if I wanted to put signals in, i'd probably take out the AM demodulator and feed the AF in there. Ready to go switching saves drilling holes in the front panel. You can also get DAB converters, I'd probably do that instead of messing about with patched in sources.

 

They sell modulators that you can hook up an audio source to and play it through your FM radio.

Here's one now:

https://www.amazon.com/Skywin-Hands...8-1-spons&keywords=fm+modulator+for+car&psc=1