FIAT PANDA OWNER'S HANDBOOK MANUAL Pdf Download | Fiat Panda Owner's Handbook Manual. Car Stereo System Fiat Panda Owner's Manual. Sound system (22 pages) Automobile Fiat Panda User Manual. Fiat panda (20 pages) Page 110 Assembly diagram fig. 3 The tow hook structure must be fastened in the points shown by letters “a-b-c-d” using a total of 4 M10 screws. The hook should be fastened Joying head unit connection diagram of power cord and AV Joying head unit connection diagram of power cord and AV cables . Following are different wire definition : 1) Key 1 and key 2 is for steering wheel control . you need to connect the key 1 or key 2 or key 1 and key 2 with your original steering wheel control wire , GND (black wire ) should be connected as well .