I am done with the dual battery setup and switch plan on the Talon. I am running the Odyssey PC1500 battery on the passenger side of the motor along with a separate fuse panel under the hood with a battery isolator under the hood. I mounted the solenoid under the driver seat to control key on power to the fuse panel. I used the factory winch battery cables for the isolator and the ground of the fuse panel under the hood.
Link to Battery Tray:
Battery Box Universal Odyssey PC1500 Mount Tray
Link to Battery Tray:
Battery Box Universal Odyssey PC1500 Mount Tray