I called the number 8009921997 for the manuals and received them in two days. The surprise is that they sent me four books! There is a SRT8 specific owners manual so be sure to let the operator know you have the SRT8. That book is 428 pages! They also sent me the navigation book for the RER radio along with user manuals for the REN and RBZ systems. To finish it off they included a warranty book. Get them while you can for free.