Hey I have a 04 deville and passenger window was working fine at times it will work and it will cut off right after also I would turn my key on and off and it would work again now it's completely lost power neither the door locks or window work but bottom light does work I know it's probably something electrical please help if you know what it can be I've checked fuses and removed panel to checked the cables and module but nothin it's working lost power completely all my other doors have power and work fine.