We had 4 TV's running in our newsrooms twenty four hours a day for 9 years and never had a problem with any of them.
Hardest part of any electronics life is the power up.
Three ply duct tape...If that don't hold it the car is junk. I think you better look real good underneath. That's four ply area.
FYI use a crisscross pattern for more strength on the four ply.