Going Vert, there is no big deal to soldering to gold plated connectors but to insure a good connection, apply solder to the connector and then remove it. Do this a couple of times. This is to ensure then you get a good intermetallic bond to the gold. After you do this, then you can solder your wires to the connectors. One thing though, I would advise you to apply heat shrink to each of the individual wires before soldering them and then shrink it down afterwards. This will ensure that each is insulated from the other. You can obtain heat shrink in appropriate sizes. If your local hobby shop doesn't have it a reputable electronics supply house will. You know Murphy's law..........
Hope I have been of some assistance.