In the Fiat 500 a lot of cables and pipes run to the back of the car. In the drawing below you can see which cable or pipe goes where.
1. Fuel Line
2. Handbrake cable
3. Electric cable from battery to starter motor
4. Shift lever
5. Brake lines, choke cable and speedo meter
6. Handbrake cable
7. Starter cable
8. Accelerator cable
9. Clutch cable
Seen from the engine side.