I have been using the Kwik Klip mounting bracket by Mito Corp. It is the best solution I have found. A small mounting bracket is attached via screws to the underside of the center console. You won't even know it's there if you don't look for it.
Another small bracket attaches via double-sided adhesive tape to the backside of your DVD player (or battery pacK). Mine is still tight after 2 /12 years.
When you want to use your DVD player then slide the mounting bracket into the console attachment bracket and to the player. A very clean and neat solution.
I don't know if the units are still available but here is a website:
http://www.mitocorp.com/flash/dvd_kwikklipbracket.htm
Old thread:
http://www.toyota-4runner.org/showth...threadid=17554