The GPS was delivered without case as often these days ... amazon case is impeccable, an elastic band keeps the GPS an edge against the rest of the space used to place the cables if you want to move. Personally I put rather an external hard drive and a USB cable that is the same for GPS and for the hard disk, it's good to connect everything to a PC.
The cigarette lighter is too big or he must be forced, I always leave it in the glove box (unscrupulous who stole my old GPS did not take the cigarette lighter yet stored in the previous box also ).