I have the same car and it sucks, wiring issues ignition switch issues and if that pos keeps giving me issues im rewiring the whole crap car race car style.
My sons 04 Cherokee just started this same sound over night. He pulled his throttle body to clean it chasing down another issue, and when he started it up after re installing the TB it sounded just like this……..no clue
Indirect lights, maybe interior lights.. Good videos guys. Apparently you guys have never seen a conversion van. Wood trim, curtains, blinds, etc all part of the conversation. Those old chevy and gmc truck/vans are awesome. Had a 1991 pickup that had 300,000 miles before the tyranny gave out. The previous owner did not do proper oil changes so I did swamp the engine from a junkyard at about 250,000.
That wheel horse will pull, traction is the biggest issue. Hard to kill those uni drive transmissions unless you grind the gears all the time and even then it'll take awhile.
2004 Jeep Grand Cherokee 4.0. Have this same exact sounds. I have put 60,000 miles on it with no issue yet. I have noticed different oils will make it sound different. Just going to run it till it blows. Figured dropping a new engine is still cheaper than a new $50,000 Jeep Wrangler.
I've got one that is really similar to this. Not sure what year model it is but it's a vandura 2500. Mine has interior lights built into the ceiling over each seat and led lights builtin over the seats.