Check this out. Happens about 20 seconds after the dome light shuts off after killing the ignition. Pretty sure it's battery related, even though I haven't had any problems starting her.

Ignore all noises, that's just me getting my phone into place.

 

My 08 XL 4.2 manual does the same thing, it has done it since it was new. Maybe it's normal?

 

Maybe it is normal. I never noticed it till Monday night.