I have an option for you, but unfortunately the Warner 1300-80 you have has been discontinued for a while now.
The only air to electric brake controller we offer now is the Hayes # HA100400C which will be pretty easy to install. Just cut the 4 wires off of your current controller, and wire them in the exact same way to the new # HA100400C. You'll just need to connect the air line, and install the new mounting bracket as well to finish it up. view full answer...
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