Installation of 12V PWM Filter for RV Backup Camera Systems on GM Vehicles
Updated 08/31/2026 | Published 05/20/2022
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Question:
Would i need 3 of these 1 for backup 2 for side cameras for 2021 HD Duramax chevy
asked by: Robert G
Expert Reply:
You should be fine with just the one. To this point we've had limited in-house testing of wiring configurations, but of the two installs completed of a 3-camera system such as you have (most installs are of a single back-up camera), a single 12V PWM Filter, # VGR64VR has resolved the issue. I recommend you install a single 12V PWM Filter for RV Backup Camera Systems, # VGR64VR.
You also have the option of using the 7-Way Vehicle Power Adapter w/ Power Switch for Furrion RV Observation Camera, # FR87PR. This too resolves the power issue for 2021 and newer GM vehicles using a simple adapter plug. However, between the two options available I recommend the installation of the 12V PWM Filter for RV Backup Camera Systems, # VGR64VR over the Furrion adapter. It is a permanent solution once wired in, better price point, and no adapter that can be accidently damaged. But the option is available if you want simple plug and play resolution.
Product Page this Question was Asked From
7-Way Vehicle Power Adapter for Furrion RV Observation Camera
- Accessories and Parts
- RV Camera System
- Camera Adapters
- Furrion
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Craig B.
8/30/2026
I have the Furrion vision S+ 3 camera set up. I'm getting the "no signal" alert. I bought the Furrion 7-way adaptor and that did not work. AI said the 3 hi-def cameras are still pulling too much power. It suggested using the filter but said I could get away with just one filter up front at "the box" where the 7-way umbilical cord connects to the trailer. My concern is if one filter will be enough for 3 high def cameras. AI says it will be fine if done up front. I I do it behind the box, I would need 1 for each camera. Thoughts?