Tape the second speaker wire to the first to pull it through the splash guard. Start wrapping tape away from the end of the second wire, and wrap to it to and over the end of the second wire so the edges of the tape wrap lay correctly
Run the wire though the door side connector
Then through the car side
Use a bent coat hanger to push both wires into the cabin through the weather seal the car side connector harness goes through.
The wires come into the cabin just behind the lower right front corner of the glovebox onthe passenger side. Still have to do the driver side