I don't have the wiring diagram infront of me ATM, all I did as far as the speedo and dummy lights was use the same wires and just extend them.
*Wires that went to light up the stock speedo to the light on the new speedo.
*High beam indicator wires to High beam indicator on new speedo.
*Nuetral to Nuetral
*the only thing I did different which we talked about was I used the "Low Oil" light on the new speedo as my left turn signal and the "Turn signal left on" light as the right turn signal, since I wasn't going to wire up a "low oil or high oil temp" sender it worked out better that way for me