Surfalia

Just purchased this Old Hisun and it included with a box with a brand new EPS kit. I found YouTube University installation videos and it looks doabke, but maybe the kit is made for newer models because mine doesn't have any extra open plug and play wires I see in the videos that woukd allow me to seamlessly connect the EPS wiring harness too. Has anyone ever retrofitted an EPS kit to a 16 year old model? Thank you for any usable input offered. Sincerely, Surfalia