no... theres no option for that on my audiophile either. is there an inline fuse on the sub you bought.

 

Not that I can see where would it be at?

 

on the hot wire prior to the sub itself

 

I do t see anything on the outside would it be in the inside of the plastic box then?

 

Ok looked on the inside of box nothing but the wires coming from the amp. Inside the amp it is extremely dirty what would be the best way to clean it? Also could this be why I am having problems?

 

Are you the original owner? If not, it's possible that a previous owner replaced the factory NAV (made by pioneer), with another that perhaps did not have the factory subwoofer option enabled?

I know folks that buy the factory NAV units have sent them off to specialty radio repair businesses (google for them) to have features turned on (I.E. the ability for the Factory NAV to play DVD/Movies, or to have a backup camera feature enabled). Maybe the subwoofer option was also a feature that needed to be enabled?
Not sure, but tossing this out as a possibility.

 

You never stated you bought a used sub...maybe it just don’t work... test the sub itself.

 

Not the original owner and will test the sub today and see if it works