Technical Bravo2 tjet aftermarket radio no sound

[Jaapje1988]

Hi!
I have been looking here for a solution but couldnt find one that works for me.
I have a bravo2 tjet with subwoofer. I bought an a droid 2din radio and connected it to my ISO cables. Everything works fine, even steeringwheel controls but there is no sound.

I contacted the seller, he said i should connect the "AMP CONT" cable to the appointed red cable (switched power) and that should solve the issue, but sadly it didnt. The seller replaced all the cables and radio but i still have the same problem. I read in another thread that i should connect the 'subwoofer enable' and 'amp enable' to the switched power cable, i also tried that but it does not work as well.

Where else can i look? I will add all the information i have in the reply of this post

 

[Jaapje1988]

See all the pictures and screenshots with info attached

 

[aschiuta]

See all the pictures and screenshots with info attached

In Fiat documentation say there be positive signals from original radio to enable the amplifier and recognize the woofer status. I dont know if the positive signal mean +12 volts or other values. If you still have the original radio you can try to measure what the positive signal mean. The amplifier is into woofer box.

 

[Jaapje1988]

In Fiat documentation say there be positive signals from original radio to enable the amplifier and recognize the woofer status. I dont know if the positive signal mean +12 volts or other values. If you still have the original radio you can try to measure what the positive signal mean. The amplifier is into woofer box.

I tried connecting both to +12 volt but that did not help, so maybe it has to be another voltage, ill try to find out