I need a wiring diagram for Pyle view PLDNV78i

All I can suggest is, plug in a mini USB cord, and remove, or blow the connection out with air.

Pyle PLCM7300BT Mobile Video Navigations Back up Camera Rear View...
Went to this site to find your particular product,it has a downloadable pdf manual whic will by default show you your setup.You may not have the green wire but if you read this manual you may be able to by process of elimination figure out your question.Pyle also has a very good technical support staff,been there done that ,they will also help you out.Good luck hope this helps you.

Not sure what connection method you have.. do you have USB driving the touch screen or all inclusive HDMI, or serial port... Anyhow, you need to check your drivers and remove and reinstall them. It is most likely a driver problem. Next check cabling if the touch screen is outside the video signal (non-HDMI modality).

maybe you have a disconnected cable, check all the cables again

Where do I hook up the green wire on Pyle 7200 rear view camera

Manual for what? Plug in the power, plug in the display port and your done. What are you trying to do?

They are for the steering wheel controls. If you don't have the steering wheel functions in your car, then I wouldn't worry about them. You may have a bad antenna for the gps.