I am fitting a subwoofer and amplifier to the original fiat headunit. (I do not like the tacky flashy headunits)

Does anyone know the aut. antenna wire is active on the rear of the headunit of the 500 since it doesn't actually have a power antenna.

If it is I plan to use this for my remote on cable. If nobody knows I guess I will have to get the multimeter out and have a look!

Nevermind, It does function as I wanted it to, I have checked it!