i have a sub box forONE 12' SUBfor a chevy/sierra extended cab. this is the one that goes under the seat faved down. it has a 12 in fairly new (less than 1 1/2 yr old)rockford fosgate sub installed and will be included. im located in san antonio tx. 85 bucks gets it. im new here but have a goood rep in the forum "my350z.com" with a trader rating of over 20 items sold and over 100 in ebay. i also placed this on the local craigslist if you want to check it out.my camera is dead so i dont have pics right now but you can stop by and look at it or we can meet somewhere if you are local. locals call or text me at 830-968 3319