I am not going to be reinstalling A/C in my Regal so I am removing the a/c components. I don't want to change HVAC boxes to a heat only box though. However to clean up the look of the engine bay, I want to remove the evaporator coil so there aren't just two lines coming out of the firewall to nowhere. If I remove the evaporator coil, and block of the hole where the lines came out, is any further action required? Or will my heat be on all the time if I leave it this way, do I need to make a block off panel or something to replace the evap core?