Aging HU

I have a Kenwood excelon unit, one with the rotating faceplate, about 4 years old now.  Lately I have been having trouble with it getting stuck when it is opening.  I have to manually push the face plate down so that it will completely rotate.  I had the ribbon cable replaced not too long ago, and I have ruled out any mechanical problems with the mechanism.  I had a bad fuse in the truck on the radio constant supply.  I replaced it, and the head unit quit doing it for a little while.  Should I try another power source than the factory one, or am I just suffering from an aging head unit?  Thanks for the help.Good Luck!

-Thad

try checking your grounds. that could cause poor connection and blow a fuse and let that face assmbly strain. and also check power lead.JUST ONE MORE AMP!!!

hu,alpine cva 1005/dva 5205

sound processor,symmetry(first one).

sub amp,power 1000 the terminator.(1992).

subs,spl comp dual 1 ohms.

punch 150hd on a 10" ev.

alotofhighs