HELP! PARKING NAPLES ITALY Overnight @ the Cruise Ship PORT
 

I am arriving at Naples via Royal Caribbean Brilliance of the Seas and I have friends that live in Bari, Italy coming to join us for the Tour we have planned. They will be staying overnight at Mecure Napoli Angioino Centro accross from the Port and would like to leave their car overnight at a secure parking area.
Does anyone have information on the Parking cost and the closest parking area to the Hotel and Ship?
Do they have security at the parking areas?
I read of many that go to Capri park overnight, but there is no mention of where the parking areas are located according to the CRUISE SHIP Terminals not the Ferry Terminals...or are they one of the same?
THANK YOU in adavnce if you can offer details that will assist us!

If the Mercure Napoli Angoioino Centro does not have its own secure parking, it will likely have a contract with a nearby one. They should ask the hotel.

THANK You Zerlina for the quick reply! I spoke with the call center and they do not, they gave me Myparking.eu to check out...but I think there may be parking at the port that will be so much more convenient for them. Maybe someone has used the Port for Parking that knows.....but thanks anyway!

There's this 24-hour parking garage, which is quite close by:
http://www.grangarageincoronata.com/index.html