Purchased an N4 and did the install myself into a 2008 Durango w/ Amp and the peripherals (CHYAH08) to retain steering wheel controls. I followed the wiring as indicated. When listening to the radio, I hear everything perfectly...radio and the button/screen changes. When I switch to CD (after taking out the navigation CD), the screen shows the CD playing and all looks normal, but ALL sounds are gone...buttons etc. I switch back to Radio, and all sounds are back. Any thoughts? (Bypass is installed - switched the yellow wire to the open pin slot (just as pictured in the forums) and grounded w/ p
