Installation of an in-dash unit is much more involved compared to a portable system. Crutchfield provided the brackets, antenna, and wiring harness adapters to make the job as easy as possible. But this specific unit required modifications to the structure at the rear of the dash. Even without these modifications, the install would have taken several hours for a non-professional. Of course, when you're done, you have navigation, a new stereo, a DVD player, a display for a back-up camera, and more.