This is a picture of the current blinker controls in The Silver Bullet.

(1) is the lead for the left turn signal
(2) is the power coupler
(3) is the lead for the right turn signal
(4) is the toggle for the relay for the headlights -- normal/brights

In order to signal, you simply pinch either (1) or (3) together with (2). During the length of the contact, the blinkers will blink.

To turn the high-beams on or off, you simply touch (4) to a ground. However, for special effect, I like touching it to (1) or (3), which causes a wild spectacle of blinking lights as the headlights toggle.