First, I have an 2011 Focus with basic cd unit and USB in the glove compartment. The basic cd unit has only one large connector with 26 pins, an smaler one for USB and on for antenna. I don't know how you managed to solder the wires on so small pins.
I've got three wire from another cable, those wire already had the electrical terminal so I could insert them in the cd unit connector (the large one) on the empty places of pin 6, 17, 18. It is a little bit tricky, you have to unlock this connector first so that you can actually insert any terminal in an empty place. This three wire I route them thru the dash until I got them in the glove compartment where the USB already sits. Here I soldered the female jack.
If your cd unit hase two large connector than I am not shore that this will work because in this case the AUX and the USB are managed form an separate sync module or media hub.
Hope this helps.
I hope this picture will helpHi Ovidiur,
I asked similar question in a thread: Radio (AHU) with USB but no Line-in Aux
sorry can't paste links as I don't have enough post count 😞
With your answer, seems like the old radio does have aux input (as I thought so too). Can you please tell me in which order the pin numbring start? I couldn't find any reference guide on this. If I find some more details on this, perhaps I'll be able to poke into my own wires to take aux line-in out.
On the 2nd image, what is the 2nd connector suitable for?The aux port is just a connector with 3 wires. There are difference in the old and new cd units. Old units have one big connector, an usb port and an antenna connector. The aux port wires goes in the big connector at pin 17 & 18 for right and left channel and pin 6 for ground.
Now the new cd units have two big connectors. The aux port is routed trought the bluetooth/voice module then passed to the cd unit on the above mentioned pins. So the wiring in this two situation are diffrent.
First picture you see old cd unit with usb connector and second picture you can see new unit with two big connector. Pin 17, 18 and 6 are located on the big connector from the first picture, respectively the connector an the left side on the second picture.