Please Identify

[84C10EC]

I'm removing my wiring harness for restoration and being a complete newbie to restoring anything especially a truck I need some help identifying a few parts please. I want to make sure I get these labeled correctly. The first is a little harness that comes off the headlight harness and attaches to the brake system. The second comes off the electric window harness and lives up under the dash. It might be a relay. Appreciate any help I can get. Thank you!