how to release 2004 v70 parking /position lamp socket?

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the parking / position lamp socket is located between the turn signal lamp (corner light) and the low beam headlight cover. All owners manual and web sites reference parking / position light socket under the low beam dust cover. I can find not reference to a socket nor can I see how to release it in the tight quarters. The socket fits in a rectangular recess so twisting left will not work. I can feel no accessible "finger tabs" to depress and release. Any help or reference is appreciated. Note: this v70 is equipped with headlamp washers / wipers should this make a difference.