Console organizing/speaker box

I just got a 2000 tundra sr5 access cab. It has the center console in a fold up seat in the front. I'm wondering if there are any console organizing ideas to keep things in place when the seat is up.

Also I am wanting to put a 10" sub under the rear passenger side seat in the storage compartment. Are there any boxes that are affordable?

 

Qlogic has one its for 2 8inch subs only... it was the only thing I found for the 1st gens... I have one I like it plus its hidden. .. but if your looking for boom bass for get ur back seat then.. I can post a pic if you want...