What is Trade in value of 2017 Subaru Outback

Most car dealers use KBB, so look up trade in value, that would be the max you can get, most will offer less.

No, most dealers use NADA.,com, as do banks, financiers, lease companies and auction houses. KBB is a private party publisher.

Maybe in your area they do, but Dealers around me want to give you wholesale for your trade in.

NADA lists Rough, Average and Clean Trade values, plus an ave Retail, so it's all you need.