There’s nothing better than working on the car in the garage during a torrential downpour, so i unboxed the SwitchPros SP9100 to add to my electrical panel. I had previously installed a relay/fuse box on a PowerTray panel, but I wasn’t excited about adding a lot of dash switches in the few blank panels i had available and the SwitchPros 8 switch panel seemed like an elegant solution. The PowerTray will continue to power accessories that have their own on/off switch like CB, HAM and Compressor, but I’ll be adding more lights soon so needed something neat and tidy on the dash. SDHQ offers a laser cut dash panel for the left side of the steering wheel on the 4Runner, so that was the deciding factor to move forward.
Starting with the SDHQ Dash panel
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I assembled the switch pros pad and trimmed a bit off the opening in the dash to accept the new panel. The instructions were very clear and the SDHQ panel fit like stock.
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The previous panel installation included a 6x wiring harness through the firewall, so this accommodates the ignition and light trigger wires (blue and white) to bring them into the car to connect to circuits using two Add a Fuse connectors.
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I velcroed a bus bar for the switch power connections to the top of the fuse box for lack of a better place to put it for now.
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The Switch Pros panel is very easy to configure using the App, including changing the panel color to match the dash.
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Here’s the wiring diagram. The only change I made was to wire the Ditch Light switch relay to a 20A pole (switch 1) instead of bypassing the relay off of a 35A pole. It’s a 45A relay, so I figured i still needed it.
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it was a great afternoon project and wonderful to hear the rain pounding the roof while i worked. I hope everyone managed to stay dry or get really muddy!