Problem using power adapters with car lighter socket
 

I'm used to using various power adapters in the lighter socket of my cars. I just bought a very nice 2002 Saab 9-3 SE. I'm finding the lighter socket kind of shallow, too shallow to seat the adapter plugs securely. They work but they are very prone to being touched and disconnected.

Has anyone else had this issue and what have you done to remedy the issue?

Thanks.