in the market for a gps/fish finder/radar? or as close as i can come up with that. i have radar and fish finder but if i can combine into one that would be fancy. can anyone recommed one or does anyone have one that they are trying to get rid of? cant go to high on a price but lets see what is out there. oh yeah, preferably i would like the ability to take this off and not leave it behind the whole 4 days i am not with my boat.