Help Installing an Pioneer AVIC-Z2 in a 2012

Hi Guys and Gals,
I'm in the process of installing a Pioneer AVIC-Z2 in my 2012 Double Cab Tacoma. I know this navigation systems is a little on the old side. I had installed it in my 2004 4Runner that I recently traded in but the unit works great and I know the features.

I have also used the search feature as much as possible and cant seem to find answers for the following.

1) Does anyone make an interface cable that allows me to use my sharkfin antenna?
2) Does anyone make an interface cable that will allow me to use the backup camera through both the navigation and mirror at the same time.
3) I have a PAC SWI-PS that I removed from my 4runner. Will this work with my new Tacoma or should I upgrade to a newer model?

I dont like to cut into the exsisting wiring harness if I dont have too. So if anyone knows of any interface cables for anything I might be missing please let me know.

Thanks!
Rich