Ipad installed in my dash: PROBLEM

Abramsm1a

I recently took out the original HU from my 09 Nismo to make room for an Ipad 2. With the Ipad I won't need a radio or CD player so the vacant area is being turned into a small storage compartment with a nice little door. Not having some sort of HU creates a few issues, but I'm not sure how to solve them.

1) The AC/heat controls will no longer function.

2) The passenger side door opens when it wants to and the lock/unlock button on the outside never works.

So I guess I'm looking for a bypass or something for the harness?? I've been looking for an aftermarket module, but nothing so far. Has anyone done this? Any info is greatly appreciated.