Install wire for dashcam

I recently bought a Garmin dashcam and would like to hide the wire. I was able to hide majority of them very well except the section where I need to go underneath the area below steering wheel and above pedals. There is a panel that can be remove and put the wire inside. The area I'm referring to is the part 55303b (see diagram below, right blow the second box). I can't reference the panel number because it is not within the diagram but it covers 55303b and the position is exactly where the arrow is pointed to. Any idea how I can remove or partial open it?

Thanks!

 

@jay1105, that is exactly what I was talking about! I'll try if I can do it. Thanks you!