with a 7 wire unit, you should have a 3 pin flasher, one for power, one for the signals, one for the pilot light on the signal unit - if you don't have or don't want a pilot light, the 2 pin flasher could work, just leave the pilot wire disconnected - see the tech tip

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics