Hey guys.. i have cobra XRS 9430.. i am having trouble with the installing my RD on my windshiled. where is the best place to put that on. is it the center of the windshield or on the left center or on the right center.? i need help with that,... also how come i dont get the STROBE ALERT.. i see so many fire truck, ambulace passing by.. but no alert on my RD.. sometime i see cops with their blinkers on.. my rd doesnt detects that.. what may causing this touble? any kind of help will be appreciated.. and if u have any picture to go with it ...that is even better..