ok , I have the power mirrors and the power mirror control switch . I relly need a diy on how to install these ? trust me i looked for a good one . The problem im running into is that I don't know if i need to have the black box control relay(pic below) ? I have everything else . I took all the parts off a 4door ef w/power mirrors .I know the power folding mirrors use the box control relay (pic below). I went to the junk yard for the second time looking for one of these and no luck . I was told it was in several places. under foot panel , in drivers side door ., and up under the dash . wth ? please help me locate this so i can install my power mirrors if this is needed.thanks

 

do i need this ? help please.