Is there any wiring already available for an underseat subwoofer on Passion ?
HGB
It's under the driver's seat. The seat must be removed partly to get to 3 colored connections. After the connections were separated I removed the seat and moved it around the outside near the rear of door opening. The belt is still connected, that's why. Where the wiring goes under carpert, right to the rear of that location is the connecting harness for the factory sub. I pulled it through a provided cross slit in the carpet. Since the wiring was short I had to cut a small nylon tie below the carpeting and also unraveled some of the black tape that held everything together.
I then placed the sub on the same 4 threaded holes the seat uses. I then connected the plug of the harness to the sub and reconnected the 3 plugs. Then the seat was placed back over the 4 holes. I replaced one screw first that helped me align the other 3 quicker. I replaced the screws and tightened them. Finito. The woofer is better than no woofer. Enuff said.