Wiring:
Was wired to the original radio via High Input on Front speaker L / R. Simply connect 4 power thieves to the LS Cable LS of each L / R and then Verbing on the RCA cable. Current via cigarette lighter with remote signal (Punto security to 180W from the TX suction only 150W). Mass direct from the floor panel.
Installation site:
Under the passenger seat directly turned on the seat plate. This has the pleasant side effect that can be passed directly to the seat, the bass and so lead to a perceptible bass.
Setting:
Since Fiat original block had more than very very poor speaker, the crossover frequency can be turned on 125Hz. That's a good thing. According to the documentation of Fiat only means and tweeter were used. The radio can now be safely turned on Bass 0 and it comes here not to oversteer the original LS due to increased bass on the radio. Now there is in the car finally a balanced surround sound with rich bass and the best without having to sacrifice the trunk!
Price / performance is very good!