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Honda/Acura NSX Switch Blank USB and Mic Housing - for Grom BT3 Unit - image

Files (2)

NSX_Switch_Blank_USB_and_Mic_Mount.stl
STL
630.0 KB
Supporting_Brace.stl
STL
14.0 KB
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STL fileRoleSource sizePETG / ASA 20%PETG / ASA 25%100% solidRecommendation
NSX_Switch_Blank_USB_and_Mic_Mount.stlMount / bracket630.0 KB STLSlice fileSlice fileSlice filePrint with a high layer adhesion for a smooth finish
Supporting_Brace.stlAccessory piece14.0 KB STLSlice fileSlice fileSlice fileSmall functional file: print slowly; consider 80–100% infill for durability.

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Center Console

Honda/Acura NSX Switch Blank USB and Mic Housing - for Grom BT3 Unit

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Description

I installed a Grom BT3 into the stock Bose headunit of my '93 NSX - it comes with a cable that brings a mic for handsfree caling, and a USB socket to use as an external input, or for 5v charging. On the central switch plate, most cars will have a switch blank - this design replaces that, to give a more factory look. You can then mount the Grom unit behind the stero, just to the side by the glovebox, and route the cables back through the tunnel, and then into this switch. Requires the whole centre console to come out, but plenty of guides online on how to do that. It's designed to be tight, so take care and patience when fitting the USB especially. There is also a small bracing piece you can snap onto the rear just to give it a bit more strength and hopefully prevent the plug from ever moving. For best results, sand with a 2500+ paper to get it to look more OEM. Printed with PLA as I'm in the UK and it's never that hot - you might want to consider a material with a higher melt point however if you're in a hotter climate.

Compatible Cars

Published Jun 27, 2026Updated Jul 15, 2026

Originally published on thingiverse.com by Keith Mizen (mizen) · License: CC BY

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