[ctuna]

If you do OEM like that guy did 4500 for parts.
I estimate it would probably be another 3k or more in labor not practical
for those in the US or most any other place.
You have to make some decisions here.
You have the info .
If you change to an aftermarket head unit you can get all the stuff
in one unit but it has side effects to do it right you have to re locate the head unit.