when i go over a bumps, my car squeaks. the front and back

It started in the rear end of my car. When I would back out of my driveway there was a little bump, more of a hill/drop off, and every morning/night it would squeak. So I called the local dealership which is where I also bought it from. They said they would take a look. The first time I took it in, they said they couldn't get it to make that noise(of course). So about 2 weeks go by and it only gets worse. So I call again and take it in. Finally they said they were able to hear it, but couldn't pinpoint it down. So they were going to start with the cheapest thing which was the rubber for the bushing mounts, got it back, seemed like it was fixed. This was in April/May. I drove to Florida and back in early May. Well it started again on vacation. I took it back as soon as I got back, once again they said they couldn't hear anything. So I let it go. Once again it got worse, but now my front end makes the noise as well. I took it in for the front end. They said they could not hear it once again. So I am taking back in AGAIN because now its all throughout the car. When I turn, when I am backing out of the driveway, pulling in somewhere etc. I am so tempted to ask for a whole new suspension all the way around. Which I know that won't happen but I am getting sick and tired of being without a car for the day, I am tired of going back and forth, wearing my tires out etc. I bought this car brand new in March of 2016 with (150 miles on it) and when it first started the car only had about 5k miles on it.