wiring a flip down monitor

I have a flip down seven inch monitor. I want to install it into my truck. The unit came from a 2001 Chevy Express van. The wires have been cut. So, I only have the end of the wires that go to the monitor. There are three connectors. One is an eight pin. The second is a twenty four pin and the third is a fourteen pin. I only want power and video input. The only thing that I know is that Clarion makes the monitor and that it is built into a GM overhead console with rear heater controls. If anyone knows anything about this monitor or needs more detail, please let me know. Thank you, Don Z.

i am not at all familiar with that monitor. But most OEM equipment uses RGB input. There may not be a composite video input on the unit.

I am just trying to figure out what each connector does. Then I can build a new harness. If I knew how to post a picture on here, would that help?