HEY GUYS NEED SOME HELP GOING TO INSTALL FUEL PRESSURE GAUGE IN DASH WHERE SUN GLASSES GO ETC 99 2500 CUMMINGS QUESTION DOES THE TRIM AROUND THE RADIO / SPEED ODOMETER ETC SNAP IN PLACE OR DOES IT HAVE SCREWS SOME WHERE DON'T WANT TO BREAK IT THANKS QUESTION # 2 SENDING UNIT THAT GOES ON TOP OF FUEL FILTER STANDING IN FRONT OF TRUCK WHICH HOLE DOES IT GO TO THE LEFT OR RIGHT PLUS A ELBOW CAME WITH IT DO I NEED TO USE IT OR JUST SCREW IT IN STRAIGHT UP THANKS . PLUS POWER SUPPLY CAN I TAP IN TO CIGARETTE LIGHTER POWER THANKS