reverse lights not working

so i only have one wire on my tranny for neutral, i ran two new wires up for the relay area, hopefully they will light up when i work on it on sunday... but atleast we got them so they are grounded right and they will atleast light up when forced to.. have a floor shifter but cant figure out where the wires are suppose to go to.. so i think running the wires to the relay under the dash will work?