Questions before firing up
 

Well im gonna fire up my car for the first time in 2 years and i need some help. when i turn my key to acc. the abs charge, add coolant light and oil light are on and after 5 seconds it starts buzzing. Im pretty sure i have everything connected but any help or ideas would be great! I need to drive my car again lol

Also there is 2 blue connectors on the ecu harness that connect to the interior harness by the ecu, which one connects to which because they both seem to fit the same plug

The plugs should not be identical. Have a closer look.
As far as the buzzer you need to add coolant and burp the lines all the way. I would also make sure the oil is topped off.

I'd change the oil and coolant before starting it. When changing the oil, make sure you flush it out by adding fresh oil while the oil drain is loose.

well she started up and is soundin great!