2015 subaru impeza radio wiring diagram

Im trying to find a wiring diagram for a 2015 subaru impreza. I installed an aftermaket head unit a few months ago, and today i lost power to the head unit. did all the normal diagnostics and found i have no power coming from the battery. ignition side has 12v, but the constant voltage is 0.14 volts. trying to find a wiring diagram to see is there is a fuse or a fuseable link on the circuit.