Aux Jack

cleanflametrap said:

@Patrick

The numbers on the pic are Digi-Key numbers from 10 years ago. Here's an old post where I put up some pinouts in a Brickboard thread on 7/9 radios. https://www.brickboard.com/RWD/volvo/1384202/740/760/780/aux_source_factory_audio_system.html

Click to expand...

Thanks,

Found the part numbers, but they seem to want to sell them in Costco sized quantities.
Ill keep looking for small quantity suppliers.
Patrick

HRPufNStuf said:

Thanks,

Found the part numbers, but they seem to want to sell them in Costco sized quantities.
Ill keep looking for small quantity suppliers.
Patrick

Click to expand...

I bought a single CP-1380-ND from them just the other day, can't speak for the digikey 3.5mm jack as I already have one.

So after some trial and error with wire size, I'm happy to say that I was able to add a 3.5mm jack without losing the EQ. I just took the wiring information cleanflametrap posted (I really appreciate it!) and interrupted the left and right audio out wires between the radio and eq with the 3.5mm jack. Ground is connected to both circuits all the time and audio in is connected like stock. Interrupting the audio in wires would be slightly better for the sound quality but I like being able to use the EQ even when my Bluetooth adapter is connected.

<blockquote class="imgur-embed-pub" lang="en" data-id="a/twkd75i"><a href="//imgur.com/twkd75i">1991 Volvo 740 Aux Jack Retrofit Adapter Cable</a></blockquote><script async src="//s.imgur.com/min/embed.js" charset="utf-8"></script>