Where is the filler cap for the rear windshield washer on a 2007 Ford Explorer?

I've looked everywhere in the back and under the hood and can NOT find where to put the windshield washer fluid for the rear window on a 2007 Ford Explorer! Help!Where is the filler cap for the rear windshield washer on a 2007 Ford Explorer?Both front and rear washers draw water from the the mahoosive tank at the front. The one thing is is that the rear washer pump tends to placed higher than the front and so runs out of water first.Where is the filler cap for the rear windshield washer on a 2007 Ford Explorer?They use the same one thats for the front. They have a long hose that goes from the front to the back.Where is the filler cap for the rear windshield washer on a 2007 Ford Explorer?My Ford explorer Is in the back, open the trunk door (Big Door not window) it should be on the left side By your taillight ,it should be a black rubber plug.



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