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I soldered the AUX IN cable as in the diagram, added capacitors. In the diagram, pin 4 is GND. I insert a CD with a silent recording and unfortunately nothing comes from the smartphone. I will add that I am a complete amateur in these matters. The soldering went quite smoothly, no cables touching or soldering. I read threads somewhere that in a similar radio they cut off the beams from the CD stereo, but how to do it (link to the thread below) and then solder R and L. I also tried without capacitors.

DIY Aux In connection to car stereo JVC KD-G151

Here is manual to my radio:

https://www.opweb.de/english/company/JVC/KD-G162

enter image description here

Please let me know what I should do.

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  • \$\begingroup\$ Just to clarify: the goal of what you're doing is to add an AUX-IN function to your car stereo by "overriding" the audio it would normally be playing from its internal CD player? \$\endgroup\$
    – brhans
    Dec 12, 2023 at 21:19
  • \$\begingroup\$ If that's the case, you need to find the schematic (not just the PCB layout). for your stereo, not some other stereo. \$\endgroup\$
    – brhans
    Dec 12, 2023 at 21:22
  • \$\begingroup\$ Yes, schematic is in the second link. \$\endgroup\$
    – Mikolaj
    Dec 12, 2023 at 22:13
  • \$\begingroup\$ No it isn't. That's just a User Manual. \$\endgroup\$
    – brhans
    Dec 12, 2023 at 22:15
  • \$\begingroup\$ Sorry I made a mistake. Here it is: opweb.de/english/company/JVC/KD-G162 \$\endgroup\$
    – Mikolaj
    Dec 12, 2023 at 22:21

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