These came with my jeep but I chose to remove them so that I could put on a tonneau cover on the rear. They mount really well on the sides of the rear seat in the TJ's but can be mounted anywhere. They are very good quality speakers and sound really good. The specs are 350W max, 80W nom., 4 impedance. They are 6X9 coaxial 4-way speakers. I did drill holes in the box housing to bolt them down and also one for the wire to come through. Asking 100 shipped obo. Send me a PM if you're interested!