Alienware Aurora R4 power button

Hello everyone, I hope I am posting in the correct area. I’m new here. So here it is. Last year my Granddaughter was in my computer room unsupervised. She spilled
A fruit drink on my computer. I figured it out days later. After cleaning the best I could ,I was in luck the only damage was the power button. I removed the top part of the power button and operated it by manually pushing the button with and orange stick.This worked till now.The button no longer comes on. I started to dismantle the case but it seems as if there might be an easier way. I have looked at dell community but can’t find the answer. Can anyone help me. It seems so simple but yet I cannot find the answer. Thank you.