My 2007 GS350 had an alternator that went out. After replacing that (and the battery), the center console is completely dark. Trying to determine if this is something as easy as a fuse replacement, or if the whole display unit needs replaced (ugh!). The radio still works and volume can be controlled from the steering wheel. However, with no display, you cannot use the navigation system, climate control, info, maps, etc. Assuming this has been covered somewhere but cannot find the pages. Any help would be appreciated!