First option (Buying) is to buy the IGO software from Google Play Store directly through your headset by connecting it to WIFI. (unfortunately my friend has told me that maps of Pakistan are no more available for online purchase for IGO). You can also check other options like Sygic, Navitel, etc.). Try them before buying, these companies, as far as I know, do give trial period.
Second Option (rooting) is to install the cracked software (IGO, Sygic, Navitel) that are available on the internet but that requires you to root your Android system (if you have used any android Mobile phone you must be familiar with rooting. Check the below link, procedure for Civic X rooting along with necessary Honda Hack Tool are available there. Follow detailed Steps-1, Step-2, Step-3
https://forum.xda-developers.com/android/general/guide-how-to-enter-developer-mode-2017-t3621582
After doing that you will be able to install any software through USB.
Here is the link for Sygic for Android. While installing, skip the email step remaining is straight forward.
https://1drv.ms/u/s!Ar1xS6rUmHIPjWbhMT77TFg0PVUp
This app can be used on any Android based Headset.
Those who try second opiton please share your experience.