It happens most often when the going over bumps and uneven roads, I tend not to hear when going over potholes (probably because the sound of the crash over potholes tend to overpower the squeaks.) It sounds like it’s coming from the rear right-side.
So, it must be the suspension then right? You would think so, except:
It sounds like it’s coming from inside the car rather than outside. Since I have the windows all rolled up, the squeaks would have to be pretty loud for me to hear it, if it’s coming from outside.
Did the bounce test, pushed it with most of my weight to hear if it makes any sound. It doesn’t.
Car: 2007 Corolla.