*****I did this on my F Series*******
You do not need 3.0 for this to work, it includes it.
1. click this link to download firmware http://ds1.downloadtech.net/cn1010/firmware/AVIC_X-Series_Firmware_Update.zip
2. Click this link and follow instructions (very easy) http://www.pioneerelectronics.com/ephox/StaticFiles/PUSA/Files/Instruction%20for%20AVIC%20X-Series%203.010100%20Firmware%20Update.pdf
Enjoy Version 3.0101 and Map Version 2.0004!