Quantity   Component name
1 × raspberry pi either 2 or 3, not 1
1 × usb rtl-sdr radio found cheap online
1 × usb gps with a long wire
1 × touchscreen ideally one made for a raspberry pi
1 × car computer USB adapter adapter to connect to the car's computer with USB
1 × micro SD card - class 10 for faster load times
1 × USB power adapter for car's cigarette lighter 2 ports with 2.4A each