What tools do I need to install the ground block?

Diagonal cutters, wire strippers, and a heat gun or butane lighter. The kit is designed so no specialized connector tools are required for the basic install.

Are the 9100 and RCR ground blocks interchangeable?

No. They have different channel counts, current ratings, and connector configurations. The 9100 kit uses tin-plated terminals; the RCR kit uses gold-plated terminals. Order the one that matches your Switch-Pros system.

Where is the ground block manufactured?

CNC-machined in Woodland, CA, with US materials and tools — including the PCBs, which are designed, fabricated, and assembled in-house. Made in the USA start to finish.

Switch-Pros Ground Block Now Available

April 11, 2026

The Switch-Pros Ground Block is now available for both the 9100 and RCR — and it shipped the way we designed it from the start: as a complete, configured kit ready to install.

We announced this project in October 2024. The goal was straightforward: give Switch-Pros owners a grounding solution that matched the quality and waterproofing of the Switch-Pros system itself, without requiring specialized tools or connector experience. A single centralized ground return point, sealed against mud and moisture, with everything needed to build a custom-length harness included in the box.

That's exactly what shipped.

What's in the Kit

Each ground block kit includes the CNC-machined billet aluminum ground block, a negative cable with a ring terminal for the battery connection, a wiring harness with pre-terminated pigtails, and all hardware. You cut each circuit to length, join to your accessory connector with a soldered heat-shrink butt connector, and you're done. Tools required: diagonal cutters, wire strippers, and a heat gun or lighter.

The 9100 kit uses tin-plated terminals. The RCR kit uses gold-plated terminals. Both are matched to their respective Switch-Pros connector specs.

Two Versions — One for Each System

The 9100 and RCR have different channel counts, current ratings, and connector configurations. The ground blocks are purpose-built for each — they are not interchangeable.

Made in Woodland, CA — All the Way Through

Like every Reed Made Speed product, both ground blocks are CNC-machined in Woodland, CA, with US materials and tools. Not assembled from imported blanks — machined here, start to finish. That includes the PCBs: designed, fabricated, and assembled in-house right here in the USA. When we say made in the USA, we mean the whole thing.

Installation Guides

Full pinout diagrams, wire gauge specs, connector and splice procedures, and downloadable PDFs are in the install guides:

Questions about your specific build? Call Denny at 530-771-7594.

What is included in the Switch-Pros ground block kit?: Each kit includes the CNC-machined billet aluminum ground block, a negative cable with ring terminal for the battery connection, a wiring harness with pre-terminated pigtails, and all hardware. You cut each circuit to length and join to your accessory connector.
What tools do I need to install the ground block?: Diagonal cutters, wire strippers, and a heat gun or butane lighter. The kit is designed so no specialized connector tools are required for the basic install.
Are the 9100 and RCR ground blocks interchangeable?: No. They have different channel counts, current ratings, and connector configurations. The 9100 kit uses tin-plated terminals; the RCR kit uses gold-plated terminals. Order the one that matches your Switch-Pros system.
Where is the ground block manufactured?: CNC-machined in Woodland, CA, with US materials and tools — including the PCBs, which are designed, fabricated, and assembled in-house. Made in the USA start to finish.

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