That Rockville looks almost the same as the Cerwin Vega vpas10. I installed a vpas12. I didn't put it under the seat as there isn't much room under there with the electric seats. Manual seats might be a different story. I put it in the back where the bluetooth receiver was. It allows the carpet to be put back and you cannot see that the sub is there. I also gutted the stereo. I also considered putting on the floor of the trunk but preferred it to be hidden.
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