STARPAD Car audio power supply noise removal filter to eliminate interference free shipping

Eliminate electrical noise in the car on the car stereo power disturbances caused! Q: Would like to ask you the EQ-318 power supply filter how access My car has a grounding of two, 12V car are two lines, one red and one black. Machine is one red and one black die A: The power connection is only one filter There are three wires on the power filters, which are one red and one yellow and one black Plug the power cord connected to a host or battery power amplifier between the cut, respectively, then the red and yellow lines, red to + 12V input, the yellow line connected to the output (ie positive electrical appliances), and another black can grounding in the car shell it Q: Is the car 12V black line with black wire loom on the black lines are connected to the filter? A: The black ground as long as the filter can be a Q: The black lines all mean to say you can receive a major sub input connector red, yellow output connector on it eh A: You can say that, but our side connection yes, the black line is generally received recent car shell (metal part) on Q: The problem is that the nearest car shells are no metal part of ah A: That may also receive just what you say which one of those black lines are lines