I bought one of the Ebay coolers for my 2006 LX from Ebay seller "dnthte":
Total price was $65.98. Instant shipping, no problems whatsoever, NIB. Installation was a 10 minute job. I found mounting tips throughout the forum: Grab the cup holders in the old one and pull straight up. Pops right out. The installation clips that come with the new one are too short to clip back in, but there is a single mounting screw in the front under the removable cup holder. The hole for the mounting screw hole lines up with a metal bracket. I drilled a pilot hole in the bracket and used a self tapping screw with a washer. For now, that is the way I left it and it is pretty stable. Adding additional mounting screws further back will require some thought - There are two mounting points toward the back for two additional screws, but the bracing and mounts extend about 3/8" below the bottom of the unit, This prevents the rear of the unit from sitting flush to the floor. My Home Depot carpet hides the gap, but it is not a permanent solution. There was a post that involved trimming the mounting brackets that would provide a flush fit.