The only thing it says is "AM/FM Compact Disc Radio w/Chgr Ctrl" and "4 Speakers," so I guess no sub was installed at the factory. I'm not sure what "Customer Preferred Package 2TX" or "Customer Preferred Package 25X" refer to...
Any idea if the wiring harness should be under there? Thanks again for your help.
If you had the sub from the factory your build sheet would list “ 7 Speakers Inc Subwoofer/Tweeters”