explorer factory sub

Here is my problem.  I have a 91 Explorer with the factory sub.  I have a sub enclosure that I remove for hauling things for work most of the time.  i would like to be able to still run the factory sub with my aftermarket cd player.  Is there a way to run the factory amp?  The deck was installed with a wiring kit.  The sub worked before the install of the new deck.  I would like to make it work with the new deck as well.r wolf

there is a way to make it work...however it wont be for long...eventually the factory amp, sub, and your radio will die...might take two minutes...might take two years...but it will happen