Has anyone been able to link a CarMax account to quicken and have it update without having to enter a passkey each time?
Are you referring to CarMax Auto Finance? What type of account are you trying to connect?
And what Q product, and BUILD of that product are you running? This info is at HELP, About Quicken.
CarMax Auto Finance
Auto Loan
Quicken Classic
Ver R64.25
Build 27.1.64.25