How to link Google Adwords and Analytics?

Question

Google Analytics

I read descriptions of the solution to this problem, but I can not. I'm running into some special Google magic.
Adwords has a customer center account. In it, respectively, the client account. Tagging is enabled in the client account settings.
In Analytics, in the account settings, it is not possible to select an account from Adwords:

Answer 1

1. We start a new mailbox in the gmail domain
2. We give access to this mailbox in adwords
3. We give access to this mailbox in analytics
4. Log in under this mailbox, go to analytics, connect :)

Answer 2

Everything above + on the screenshot you are trying to link your account with AdSence, but you need a resource (next column) with AdWords. And before that, you need to make a group of linked accounts. I won’t tell you in details, I connected it myself for a long time.