Hey guys, I'm planning on installing the passport 8500 and ZR3. What do I need to know about the electrical system of the Z so that it doesn't get damaged? I'm asking because I recalled someone saying on this forum that the electrical system has something 'unique' that one could damage unless they know about it.

Also, what about the operation of the windows when opening/closing doors with battery disconnected? Do I need to tell the intallers to be careful with this mechanism during intall?

Sorry for the ambiguity of the post, I just don't recall what to do.

Thanks!