As far as wiring up the signals, ran the wires from Side Mirrors to the fuse box under steering column. Locate the turn signal wires [Large white plug above fuse box..NOT the RED/BLK wire] & make a clean connection. If you want it to work alternate, I mean when front/rear signal are ON, then the SM LED is OFF [vice-versa] you'll need to use a relay.
It'll be cool. Send me PM if you want the diagram.
Goodluck!!