I am hoping to get some guidance as to which is most popular unit amongst AVIC411 fans as I just sold my vehicle with FB900BT and loved the unit after some modding. However I just simply followed directions and never fully understood some of the difference in mods.

 

So know as I shop for a new/used unit from Craigslist or Ebay I was looking for guidance.

 

I found a good deal locally on a x920bt but saw some poor reviews on Amazon and now I am uncertain?

 

Please advise.