I


had to buy a stupidly expensive spacer for what it does. I'm sure you can print one though I don't know how to 3d model. With the spacer, blendmount for R7 and the 60a pichmount there was too much vibration for my liking even after 5k of driving. I ended up mounting my radar detector using a stick on window mount. For the wiring I would use either tap to the 10A dome or 15A P/Outlet No1 fuses

 

I went with this one, and the stem wasn't an issue. This one is a little more expensive, and I'm not sure how I determined compatibility, but it dropped right in. I think I checked Gentex site and got the PN there? The only negative Amazon reviews are from buyers complaining about the wiring hassle or tricky installation, but in the GRC it dropped right in and it's just 3 wires (12v, Ign, gnd.).

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