So I've got a Pioneer MXT-2969BT and I want to put it in my car. It came with speakers. I need very detailed tips on how to put it in. I know how to take the dash off and get the old radio out. But I've read that instructions and it's quite a bit confusing to me. So yeah detailed information please. I've got onstar and I'm pretty sure I've got an amp in my trunk that is factory. If you need anymore information let me know. Thanks!