You probably figured this out by now. But you may need to post pictures for someone to help. The brackets should be straightforward (there's a left side and right side one. If they don't work then switch them). The stock telematics device should go on top and connect to the harness. I used velcro to secure it in place. As for the backup cam you want it to send a signal only when reversing. So it should be connected to the reverse signal. I don't know how the reversing signal is sent from a wireless one. But you may need to make sure the signal side of the camera is connected to the power of the reverse taillight (not the license plate light). Because the reverse taillight only goes on when reversing which tells the radio to display the backup cam. With a wireless, it needs to have power and also detect when reverse is triggered, so you may want to check that. But honestly, if you are able to install the radio, you may find it easier and better to install a wired backup cam.