how do you take off the back panel after you remove the two black plastic backs and undo the cushions next to the seats? the back panel is under the side airbags and everytime i pull it forward they hit against the plastic piece connected to the sideair bag (theres a groove in the back panel where the side airbags are connected). is there a way to take it off without deploying the side airbags or disconnecting them? i dont feel like spending $65 to get the speakers installed when i can do it myself.