Yes its the Base Audio. There are the Hi-Fi and Top Hi-Fi systems available in the X5 as well. I have changed all of the internal speakers with the Hi-Fi speakers with mids and tweeters. The Fronts were easy, the back doors involved new door panels with the extra hole. I scored them on ebay for 135 bucks each. I also changed out the D-pillar trim and added the OEM speakers and added the OEM center channel, wired them and am waiting to decide if I want to add an amp to power them.

Adding the new mids with tweeters added a big boost to the sound. I was pleasently surprised. It is not by any means my Top Hi-Fi system from my 08 X5 but more like the Hi-Fi from my 12 X5D. I am exploring slim line subs to replace the ones under the seats because they are not garbage, just not great. I was afraid of blowing up my CIC by splicing in 10 additional speakers and more aggressive subs so I settled for just the door tweeters wired and Ill add the amp later.

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2010 X5 3.0 X-drive Titanium Silver/Black
2018 Ford F-150 Platinum Crew
2010 528xi (His)
2017 M2 Manual (His)

Former Headaches:
2008 X5 RIP
2015 M235
2013 135is
2009 535xi Wagon (JUNK)
2007 530xi 6spd CPO Sport (Best Damn Car EVER)
2011 335xi M-sport Coupe 6spd (Sex on Wheels)
2010 550GT "CPO" (Junk)
2012 X5 35d "CPO" (More Junk)
2004 330i ZHP Sedan
2002 325xi Wagon
2000 323i Sedan
1998 M3 Sedan
1992 325i Sedan