Do i need ROEM-NIS2 to hook up an aftermarket radio to the z. the adaptor only list up to 2005. I need to know if this will work or if i even need it to work with the bose amp and speakers. I do not want to change out speakers want to keep factory setup. I am looking at pioneer AVH-P4000DVD or AVIC-F700BT. After the install will the factory nav voice guidenance still work.

thanks for the help

 

It's my understanding that the PAC ROEM-NIS2 harness is used to insure there won't be any buzzing sound. I don't think it's necessary and other harnesses can be used but it's probably a good idea.

Here's a link to an install thread that has more info about it towards the bottom.

...as for it working with the OEM nav