Squeak coming from passenger side rear. Think it's inside...can't tell. Pretty general but anyone experience this?

 

If it's too vague for you to even give an accurate description how are we supposed to solve the puzzle over the internet?

 

A LONG time ago, this was my job, finding squeaks and rattles, some suggestions.

Get in the back seat, make a fist and use your outer palm to tap gently but firmly around the area you think the noise is coming from.

Take someone for a ride in the back seat, have them listen for the squeak.

Try pulling the seat backs down to see if it stops or gets louder.

 

I had same problem, could it be your rear LCA's bushing giving up. try squirting a bit of wd40 on the bushings to see if it quietens down the squeak. If so replace the LCA's.