kwkshift1

Hello all, I have a 2004 Silverado that needs some armrest latch help. It looks like I'm missing the coin tray insert, but I can't make out what else I'm missing to make the lid stay latched. I did pick up one of those Amazon plastic latches, but I'm still needing some other parts to make everything work. I have attached a picture of what I have. What parts do I need to fix this properly? Thanks.