If your pup begins whining at this stage, it could be a sign that you’ve moved too fast. Return to a length of time where he’s comfortable without whining and move forward from there. If he does whine, do not let your dog out unless he stops or he will begin to associate whining with being let out. This is not a habit you want to start or perpetuate.
Petego Pet Tube Car Kennel – And for something completely different, if you don't have an extra large dog who needs an indestructible cage but rather looking for something to fit multiple dogs at the back of your car, this may be a great alternative. This pet tube travel car kennel from Petego will be much cheaper and look substantially better in your car, and it also folds.
The wire is thinner than my old crate, which is also made of the black metal, but it is still sturdy. I used to have the really heavy silver steel crates but they are ugly and stronger than necessary. I guess if you have a dog you think might get out, you should use zip-ties all around and bungee the door when the dog is inside. The ... full review