Backup camera

[Fowler]

Have a 2013 sierra with backup camera when I put it into reverse the screen turns black and the lines showes up but no picture.  This is a new camera as well any ideas and also where is the fuse and what is the number I cannot find any information on it at all 

[dna9656]

Is this an after market camera? If so I believe it's powered from the radio of not it's powered from what ever circuit it was connected to during installation, that's where you'll find the fuse; prolly in a fuse box, they are located on the side of the dash near where the upper door hinge is located on either side of the truck.  I would check the wiring to make sure it's hooked up correctly and isn't pinched or shorted out anywhere. Don't use electrical tape to secure (only insulate) connection, use wire nuts or solder THEN you CAN tape over wire connection but shrink tubing is preferred.

[Fowler]

No it's a factory camera system.  First thing we did was change the camera but that didn't fix it and I checked the wiring seems OK but cannot find anything labeled as fuse 

[dna9656]

Is there a compatibility issue of camera and your radio maybe? Maybe they use different forms of video?

[dna9656]

Well it was a nice try, what about the unit with the screen? maybe it's bad and the camera's fine.... just sayin'.....