How can I control the texturing of the pieces created by cell fracture? I am trying to make a simple box explode to some extent. I have chosen to try out cell fracture and it works fine but how would I fix the inside of my object looking so weird? Is there a different approach required? 

Here is object before explosion:


Box after explosion, the pieces look weird, I was hoping to see just wood textures on the inside, would this require me to redo the UV map after I applied the cell fracture?
I removed doubles which there was 512 and then did the cell fracturing with source limit of 6 and got desired results