Technical AD182H - will AUX solution work?

[Tomasso]

Hi guys,

I just bought a second-hand HU for my marea, the so-called H1. I've also made a cable to connect an external signal to it, just as described here: Fiat Forum

I have not tried it yet but I am worried if it will work with H1 radio.

Will this cable work with my stereo? I know it does work with newer HUs.

Does anyone of you have experience in this matter?