Fuel gauge

[Rps]

One niggle my car had when i bought it was the fuel gauge was stuck on full now i initially thought itll just be a sender so i changed both and its still the same now when i unplug one the dial on tje gauge goes to half so that eliminates the needle bieng stuck so that can only leave two wires touching for a guess somewhere in the car now does anybody know the route the wires take or where best to start looking obv ive checked all round the tank as i was swapping the senders