NAV Unit and Alarm/Remote Start

[DrG]

Has anyone had any experience with an AutoPage 885 Alarm and Remote Start unit interfering with the NAV unit. I picked up my H2 today after having the new alarm installed and now the NAV Unit won't bring up the Dest. screen. When you press that button, the screen changes to the white H2 Boise Sound screen which is followed by the DVD scheck screen. The GPS seems to work as the current location is displayed, but if you try to access the Dest screen or the Memory Points screen, the NAV unit acts like it is powering up again.