Now that Porsche AG made Pelican remove its' handy-dandy parts diagrams

I'm afraid I'll have quite a bit more questions for this board- which is sure to reveal my lack of technical prowess. If that statement leaves you with a quizzical look on your face check out the parts diagrams section and you'll see that it has changed and the reason why. Here's my first in a long string of annoyingly simple questions:
I'm installing a Leask RPM solenoid and would like to stick the MSD control box in the engine fuse panel. There would be enough room on top of the panel if it weren't for a pesky yellow relay (see pic). I'm not sure what it's for and was hoping someone might chime in and edumacate me on it's purpose in life. I'm planning on grounding my overboost sensor so I'm not sure if this has something to do with that and can maybe be removed.?.