I installed my Kenwood KVT 512 the other day...have the harness etc...everything powers up fine, the DVD, GPS, IPOD, USB, Tuner all work fine...my problem is, after using one of them for 5 to 10 minutes, the function i'm using will stop (ie, the DVD, IPOD, TUNER, etc) but the stereo does not power off...just goes to the initial start up page, as soon as I select the function i was using, it starts back up, will run for a few minutes and then stop again? I'm assuming it's a wiring issue, but any help/suggestions would be appreciated. Thanks.