Had the g for about 3+ years and I am noticing some sort of cracking/grinding type noise whenever my car goes over a dip, or bump. Sounds like a wear and tear type of deal but would like to know exactly what it is so I can fix it.

 

Sounds like a blown strut

 

I would check your sway bar end links.

 

Check the sway bar bushings....
After 3yrs chances are good that they need greasing.

 

From which part of the car are you hearing this from? If its from the front right it could be the "windshield popping" issue else like others said it could very likely be the bushings.

 

The noise is confusing as well.
In the title it's "Squeaky noise" in the post it's "cracking/grinding"
Those are very different symptomatic noises.