I bought a 2009 dodge journey awd and I'm having problems with my stereo screen.

The first time it kept shutting off the radio the screen kept shutting off sometimes the radio wouldn't even come back on they said it was the screen that was shot so they replaced it which I don't be leave the second time it done it again so they kept it for a week and they said they put a whole new stereo system in it I know it was the same one now I picked it up the other day now there's just lines in the screen the radio is working ok for now but the screen has lines in it when you turn the volume up and down the lines move but the lines are still there the dealership won't do anything no more I also wanted to know if that was a good type of stereo the 2 piece the screen on the dash and the stereo down below

No when the back up camera is on the lines go away

Well , that would tell me it's not the screen , but the 'input' signal from the audio unit or the harness/wire possibly. To bad , it sounds like the dealer isn't up to par on testing all these.

When I put it in reverse and the rear camera comes on the lines arnt there are them system any good I heard they are nothing but trouble the 2 piece stereo and the screen is on the dash