FishnOkie: Same with my 08 Cougar FTD. Cant run both, wish I could. Dealer told me that the flasher and helm sonar transducers are too close and interference with each other is the culprit. Must be so, since turning the sonar off instantly clears up the flasher problem. BCB post above shows that we can turn off the sonar feature only and maintain GPS. COOL! I was thinking this may be an option, but havent spent time searching through the menu on the sonar to see where to do that. Ill probably try that next time out, since I really like watching the map to keep me out of the shallows at high speed. Congrats on the new ride!!! Excellent choice John Helms Hot Springs, ARLast edited by 2008 silver bullet on December 3rd, 2008, 3:39 am, edited 1 time in total.John Helms Hot Springs, AR