I know this seems straight forward but I want to be through out it, I'm swapping near a entire dash unit from a 80 into a 82, I'm gonna have to rewire the defroster I know already, but anything else I should know about? one of my white connectors has a slightly different layout then the one currently in the car, the unit being swapped in includes all the harnesses connected to the dash, and the 3 center gauges still