04 explorer factory sub wire diagram?

if your behind the radio at the 4 pin plug well really an 8 but only utilizes 4. pin #4 is amp turn on and read 5volts then I think pin #1 and #2 are your low level (RCA). On those subs you have 4 wires going to it and it is a powered sub. If you are putting in a headunit and want to utilizes factory sub you will have to put a 5k ohm resistor in series with your remote turn on from your headunit that puts out 12 volts to bring the voltage down low enough. You can use a smaller resistor but with 5k ohm you won't have any pop. Then you cut an rca and solder it into the low level's behind the radio. You should be able to see which ones are low level without looking at the pin because they have it shielded and twisted. holler if you have any problems.

 
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