What do you mean, no way to lock it? You can install a nice looking little round lock in there without too much trouble. Regardless of what you use, the plastic panels aren't going to stop anyone who REALLY want to get it open anyway. Even sheetmetal isn't going to stop that, all you need is a prybar and 10 seconds. If you're going for mainly looks, I understand. If you're main concern is 'security', I wouldn't lose much sleep over it.