My headlight assembly broke in an accident. I got one from the JY. Although it was less broke then mine. So after some repairs, I want to know how to mount the light onto its mounting points. For example, there are three metal fittings that stick out, which can be adjusted to move the light. How do I get these metal points into the plastic parts from the light? I tried to force them in, although that does not seem to work. I do not want to apply too much presure and break the assembly. 1990 740 GLE