OK, I removed the factory head unit, but now I'm faced with a bit of a problem with the ISO connectors.
Not only do the colour of wires in the Punto not match the coloured wires of the head unit, but the pins are in entirely different places.
Please help!! I take I'll need to do a bit of re-arranging on my Sony head unit ISO connector, but I don't know which cables are which thanks to the stupid colours that Fiat have used.
My Sony head unit has red, yellow, blue and black wires.
Now, which of these matches to the wires on the Fiat?
I have the following wires in the following numbered pins that were connected to the factory head unit.
1 black/pink
2 pink/white
3
4
5
6 red/white
7
8 black
I tried a few combinations last night before I got irritated by it. I did manage to get the head unit to work, but it was on constantly - un-affected by a turn of the key.