So this weekend Ill be mounting a bicycle water bottle cage in the tunnel area. For additional storage sort of like a glove box I purchased a cage rocket. The rocket slips in to the water bottle cage snuggly and is about the size of a water bottle. Easy to remove and toss in the boot if I want a water bottle near me.
and I can use it with my recumbent trike, and bicycle. As Alton Brown of Good Eats would say, Multi Tasker!