Support help me root!

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http://androidforums.com – So I want to connect my PS3 controller to my new Galaxy Nexus, but when I use Sixaxis Compatibility Checker, it tells me that my phones needs to be rooted. So now I want to root my phone just for this reason (and for future customization). I currently have GSM Galaxy Nexus HSPA+ from google store. Android version: 4.1.1 Build number: JR003C Can someone give me a single step by step guide to doing this. TY in advance. (General)