I decided to pull the eta out and have a look at it. So far I've removed the intake and the rubber boot connected to the top of the eta. There is a black thing that sits on the intake I believe its called a resonance flap. I removed four allan bolts from that and the top piece came off but the bottom of it is sitting in the intake and I can't see whats holding it on. It looks like a diaphram of some sort. Can I just pry this thing out or is this connected to the intake somehow? By the way what is the purpose of this part?

Nevermind it just pops off. I'm going to open up the throttle body tomorrow to check the wiring.