Fuse panel short at #35 Relay location. on 2005 Buick LaCrosse

Short melted through fuse panel and blew through the plug. I have replaced the fuse panel with a used one that is identical. All wires connections plugs, etc matched up. I also replaced the plug and had to splice two wires that were damaged. Put everything together and the car cranked and idled for a short time. Shut off and now it will not turn over. Low beams will not work. Had a mechanic check BCM and it is communicating. I'm going to start tracing wiring from the low beams back. Any ideas would be appreciated.

Asked by for the 2005 Buick LaCrosse
Your on the right track ,keep going and I'll try to get some1 to help you,I got to think about what your doing