I installed the REC Radio in my Durango along with the Antenna but do not have the DVD yet (but it is coming). It looks as though the DVD is needed for at least the initial use of the Navigation part of the radio (the rest is working fine - Sirius, CD, Rear Ent Sys, Steering Wheel controls, and even the Hands Free Phone Sys). Can the Radio menus and setup be accessed if the DVD is removed from the Radio? I can not even get to those screens, as soon as the NAV button is depressed is states the need for DVD insertion. My thoughts are I could borrow another persons DVD to at least get that part of the programming done and then give that DVD back. Has anyone tried removing the DVD and still access the setup screens (see how many Sats are connected, set the screen brightness up, set the clock, etc...). If the DVD is needed I guess I will just have to wait until I get a dedicated DVD. By the way, my extreme thanks to Toneaero for posting the directions and even photos for installing the radio. With his posting (now moved to the "Mobile Audio and Electronics Talk" forum) it was EEEEAAAASSSSYYYY to install. The radio was actually installed right at the house of the seller in roughly 15 minutes, the antenna was installed later in my garage, maybe 20 minutes and I pretty much had to do all the radio install again.