I've read some of the old posts and everyone is talking about really cold temps. So far it's been realtively warm ( around 30 f ) this winter, but my unit will not start up until the interior of the car is warm. The screen is not just blacked out. The unit just does not start up. Has anyone else had this problem with mild temps?

Just read the D3 topic. Similar problem, so now I'm not so worried that I screwed the pooch during install.

It's mentioned in the manual.