Some really great information in this thread.. My Z has the factory Bose w/ Nav so I bought this sub in the dark hoping to get some help once installation time came.
A local audio shop quoted me something like $430 plus parts to install it which seemed extremely high to me. Now I think I'm just going to try to tackle the install myself. My thought at the moment is to complete the install up to the point of connecting the sub to the factory nav unit, then take it to a pro to finish the job. Does this sound like a crazy idea or is there a simpler way to finish it up myself?