I am upgrading from Z1 to Z110BT and need to know:

Will I need to replace my XM module?

Will I need to replace the module that keeps my Onstar active?

I also see that the Iphone/pod wire has another wired piggybacked to it, what is the other wire/ do I need it?

What else should I know, I already know that I need to replace the plugs.

Also I will have the Unit for sale with a parrot voice system.

Thanks

 

Will I need to replace my XM module?

NO

Will I need to replace the module that keeps my Onstar active?

NO

I also see that the Iphone/pod wire has another wired piggybacked to it, what is the other wire/ do I need it?

not sure what the other wire is for, check what the manual says its for, ist probably not there just for fun

What else should I know, I already know that I need to replace the plugs.

its pretty straight forward, take out the old one and put in the new one

I also see that the Iphone/pod wire has another wired piggybacked to it, what is the other wire/ do I need it?

You have to have this cable if you want to use your i device. The cable has USB and AV connections that are proprietary to the unit.