My 12 volt plug in in the trunk is loose and can be easily pulled out. Apparently it was never locked down. Is it supposed to be? I just bought a converter to charge my phone and noticed how lose it is. Any idea how to secure it down? If I have to get underneath the trunk what do I remove (and how)? Getting ready for Durango and what to prevent any problems before they occur. The diagram on the plug shows to turn it to lock it, but nothing seems to work?