Do you know how to re-pin the connectors? At the end of the wire is a fitting that has a tiny bent-up section. It locks into the plastic connector so it can't back out. To release it you insert a tiny tool like a jeweler's screwdriver from the open side while pushing the wire forward. That presses the bent part down and the wire will slide out rearward. To re-insert it you must re-bend that part back up or the wire will not stay put.