I just need to know if there is any difference between the head unit wire harness between a 96 to a 97? My alpine head unit is already wired up from my 97, but I need to install it in my new (to me) 96. Thanks in advance.

 

95+ is the same. For sure. I also think starting from 3rd gens, you need an antenna adaptor to work with nissan's diversity antenna system.
Jae