Hello, I purchase a cable for my 300. 120-37 The box said for HPDI 300 VZ, this is my motor. however the plugs will not match, I have a gray and a white plug. I did not check till I was ready to hook them up. Well no match, is there an adapture to make these plugs. I can find no listing. I see some connectors are red and some are black. How ever they still go to the 2000 system, so the say. Can some one help me. thanks Jere.