I might be able to help you with this. The Addzest Navigation system you have is similar to the Clarion NAX9500E. I have some bits off an Addzest NVA9400F and I bought a second-hand Clarion NAX9500E sat nav system. I have pdf's of the Clarion system that would enable you to get yours running.
I was able to get my Addzest system running but it is all in Japanese and I don't think you can change the language unless you know more than me. I hit the reset button but still in Japanes.
That's why I got the Clarion system instead and salvaged some of the Addzest leads.
My email is [email protected]
if you want me to email you the user and wiring intructions for the similar Clarion Navigation unit.
It is a pitty that I wasn't able to use the Addzest navigation system but hopefully I can still use the
If you still have the Addzest equipment I was wondering if you would sell me the lead that connects the 7" monitor to the Navigation sytems as I wanted to use that it as a rear monitor.
Hope to hear from you on what you decide as I haven't had much luck finding a lead for my monitor as the Clarion one is the same size but different pin configeration