Sledge hammer if you can knock the stud from side to side to loosen it up. Monster pry bar a little at a time.
But, you know you can just drill through the studs...make holes through the studs at least 1 1/4 inch back from surface of wall...in the center of stud. You can easily fit a couple of wires in a 5/8" hole...make hole bigger if needed and keep it up from the floor....12-18" or so...some level comfortable to drill at.
dmax on the radio--answering all your car questions as best I can!
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