2006 g35 coupe with intellikey/keyless start

Trying to install an aftermarket alarm system that comes with a push-start button, I want to replace the existing keyless start **** with the new push-start button entirely.

Been looking into the FSM's the entire day and can't find any info. on the disassembly/removal of the ****.

Anyone know if this is even possible? I took off the ring and does not look like I can take it out when I looked underneath without cutting some metal out...

 

Gave up and brought it to a store and got it installed