Mine were installed (ceiling speakers), but the wires for them were bundled up inside the front overhead cabin. I don't have the sleeper option, so my TV is there with cabinetry. I connected the left side togeater, the right side together, then bought a male jack to plug them into the headset plug of the TV. Poor man's surround sound.
2005 Jayco GreyHawk Class C
2007 Ford F150