May look at trading my 510 in a another handheld. And would need these items to complete the package. The Pilots guide and Quick start manuals may be 510 specific. The other stuff I think any 500 series would work.
Automotive Friction Mount
Quick Start Manuals
I went ahead and bought a new GPS so I will be selling the 510 so it's possible that I may still be interested in some accessories. I have the GPS, bare or cig plug kit and an Airgizmo. A new owner might like a yoke mount and the basic power cord.