Demco SBS Stay-IN-Play DUO Supplemental Braking System Wiring Diagram
Updated 04/06/2026 | Published 11/06/2020
Question:
Greetings, I have watched the video regarding installation of the unit and would like to look at a wiring diagram to complete my understanding of the installation, would you be able to send a copy of that? Thank you.
asked by: Gregory M
0
Expert Reply:
I attached a picture of the wiring diagram for the Demco SBS Stay In Play Duo part # SM99251 that you referenced.
expert reply by:
Jameson C
0
click to enlarge
Product Page this Question was Asked From
Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- One-Time Setup
- Vehicle Battery
- Fixed System
- Power Assist Brake Compatible
- Hydraulic Brakes
- Indicator Lights
- Demco
more information >
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Milton
3/30/2026
To pass wires and hose through the firewall of a 2012 to 2019 Fiat 500, carefully unbolt the throttle pedal from the firewall. Pull back the carpet. The sound damping material will be exposed. Ther will be a bulge in the sound damping material about the size of a quarter. Cut that padding out and you will find a plug in a hole of the firewall. Push out the plug. In the engine bay, the hole can be found just behind the vacuum booster at the 11 o’clock position.