Jun 4, 2025
8
0
Italy
Hello, i've a 2017 Ibiza with the two USB-A and 3.5mm audio jack module (code 575035736).
I occasionally have disconnection problems from both the USB-A ports, when the phone is connected.
PRZYLACZE-DO-ZEWNETRZNEGO-ZRODLA-AUDIO-OE-575035736-SEAT


I would like to change the module with the one installed in the newer versions of the car, which have two USB-C ports (code 575035736A).
The modules seems mechnaically interchangable and the connectors key, from what i can see online, seems comparable.
GNIAZDO-GNIAZDA-PORT-USB-LADOWARKI-MODUL-SEAT-ARONA-FR-LIFT-2024r



Do you think is it possible to replace the module without changing wirings?

Of course i will loose the 3.5mm jack, but i never used it.
I dont now if the wires and pins that goes to this jack needs to be removed from the connector if trying to replace the module, since they will not be used.

Thank you
 
Do you think is it possible to replace the module without changing wirings?

Of course i will loose the 3.5mm jack, but i never used it.
I dont now if the wires and pins that goes to this jack needs to be removed from the connector if trying to replace the module, since they will not be used.

Looking at the diagrams below, there seems to be two wiring looms coming into both units.
One with 5-pins (T5l) looks the same at both ends (connecting into a round socket, I believe)

But the other is a 8-pin one (T8e, 6 of them look populated) in USB-A unit, and a 4-pin one (T4bq, all of them look populated) in USB-C.
Looking at the images of actual units on secondhand part ads, it is clearly seen that USB-A unit has a 8-pin socket but USB-C unit has a 4-pin socket.

So you would need to find out what those pins are used for in both units, buy a 4-pin connector that would fit in USB-C unit's socket, and make the required wiring changes.

1766068576366.png



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Last edited:
I would just buy a couple of USB-A to USB-C adapters from eBay. They are cheap about £2 each.
 

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On adapters you got to be careful that they are fully wired for data. Some aren't, so they only charge but dont ship data that's if you want to use Android Auto / Car Play. Read the small print of the advert or just try it with a gamble. It was the downfall of some people using old USB A drives with adapters to do firmware and map updates in mib3. Pin out not fully wired, they are in some, not in others.

Ps when I have used AA I've found broken USB cables to be an issue and length. After about a metre their ability to pass data deteriates. Connections bouncing about causes cables to break around the plug. Something else to be aware off.