I was able to track down an Infinity sub and enclosure to install in my non-Infinity X model. I've got one little problem though. How do the bolts fasten into the sheet metal? I pulled back my carpet and I had some rubber plugs that were in the locations where the brackets on the enclosure matched up to and when I pulled those out it was just a hexagon-shaped punch out in the sheet metal. I'm assuming its some kind of expansion type fitting that is threaded for the bolts to go into. I checked at the parts desk of my local Jeep dealership (which was less than helpful) and they couldn't find the piece I need or even tell me what it is. So, I was wondering if anyone could possibly take a peek and even post a photo of what I need so I can get that enclosure bolted down secure?

Appeciate any help. Thanks!

 

bump. anyone? i'd like to get this wrapped up soon.

 

Figured it out. T-nut. Tack weld. Done.