Originally Posted by ColtM4A3
That cap is a separate piece which you should be able to get without buying a handle. You may need to get it painted, depends on brand, some can be ordered by color some come in primer.
To replace it open the door and look for a black plastic plug in line with the handle. Pop it out with a small screwdriver. You will now have access to the screw that holds it in place. (usually a torx head). This screw usually doesn't come out, just unscrew it until it's loose as possible. This free's the metal piece that the plastic cap snaps onto. Slide your assembled end cap back in place and tighten the screw and you're all set.
Received the part today and using your excellent instructions, it took less than 10 minutes to put the cap on!
Wifey is happy which means I'm happy.
Thank you both for your help!!