tapndarocks

i have a 02 pathfinder and my friend was helping me with my wires for my tv ...so some reason...when we had put the dash back the. speedometer stoped working all the rest of the dash works fine i was wondering what pplug out of the 3 in the back is the speedometer...and what wire is the speedometer....on the plugg...i need to replace or maybe move around for it to work again?...please contacnt me with info on the wires maybe a diagram of the wires and what is what? im going crazy not knwoing how fast im going. thanksssssss