When removing the Onstar box behind the glove box: when looking towards the front, look behind and to the right of the box, you'll see a grey wire holder that is a push-in type holder for the wire bundle. If you push that through, towards the front of the car, the box, and the wires, will come out much much further!
Connector:
Push it back through this hole:
__________________
Dear Lord, give me the strength to carry on despite my Camaro addiction!
JRE iTSX tune, full cat-less Dynatech exhaust, CAI intake, Stillen Slotted/Drilled Rotors, RB braided brake lines, BMR lowering springs, (reserved for definite future MODS)