need help 68 dart ip/ instrument cluster removal

so my b bodys just pulled out i tryed for a bit and could not get mine to pull out and didnt want to hurt the pins till i knew better

so whats the trick theres a tab that hangs lower then the ip behind my metal filler panel how can i clear all this
undo the the wires first that i cant see or get to

little inside info would be great

thanks