All going as planned until I noticed this connector in the front passenger foot well.

As you can see it is quite corroded. 1 wire came away when I touched it so I used a small connector block to join them together again.
Will I get away with replacing all the corroded connections in the same way?
Does anyone know what this connector will affect?
I am currently getting alarm problems and the sun roof won't operate. Other that that all is ok.

