Pasternack has an extensive web site with many wire and connector types, but I had difficulty finding the connectors I wanted and wasn’t sure of the best wire type to order (i wanted thin, able to handle exterior exposure, and handle repeated flexing. I ended up calling and they were very competent and helpful.
GM currently uses FAKRA connectors. They have multiple keying options identified by the color of the connector, or you can order universal non-keyed connectors. The attached photos are of my tailgate camera connector behind the bumper. The camera uses the same connector, but with the black connector keying. Do you know if your 2017 uses the same connector?
I ordered a straight connector on the bumper end of my cable and a right angle connector at the camera end to reduce the depth of the camera/connector assembly for mounting purposes.