My ASEAN Free GPS Map Project

Ah okay it needs to be done at the navigation device! I guess it's going to be quite difficult on my in-car Kenwood radio unit, and my old Nuvi 1350 is with my dad in hometown (likely loaded with ANZ maps instead of SGMY) ... I guess my last viable option is going to be that old Nuvifone A50. Will t...

Anyone here still actively using their Garmin function in recent Kenwood radio units? Models like DNX5180S, DNX9170S, DNX9190S?

Sorry, newbie here. Always been lurking in the background and download map update once a year or more.

But how do I contribute? Let's say if I wanna help update / clean up the POI around my taman shops? Is there a starter's guide somewhere?

Thanks!