This is my first post ever here so forgive me if I do this wrong LOL

I bought an 04 Sebring LX this year and I absolutely love it. I've been tinkering, adding things that the car doesn't have since it's a base model. The other day, a friend who also has an 04 Sebring sedan gave me a gentex mirror 221 with the led lights. It came with the oem harness (#04608742AC) for the mirror and the left and right illuminated vanities. Since my car didn't have either I figured I'd kill two birds with one stone. Anyway, I managed to pull down the headliner a bit and found a lot of glue, but no factory hookups. No problem since I have the harness. The mirror harness terminates in two white plugs which connect down at the interior fuse panel.

My question is, when I pull the two white plugs which are already present, am I going to lose my dome light, speakers, etc? Just what exactly is wired up there behind the headliner? I've looked around the net and I can't seem to find any decent wiring diagrams that will help me.