On my AVIC D3, during navigation there is an annoying red line showing up that connects the destination and your location (arrow).... is there any way to turn that feature off? I bought it used so i dont have the instruction manual. Any help would be greatfully appreciated.

I checked the manual, the red line you are talking about is the direction line. I could not find any way to turn it off sorry.

Put the unit in drivers view mode and forget about it

Plus that line can be very useful from time to time

haha yea you stuck with it, it bothers me as well.