ok i sunk my 07 malibu 2years ago in water i put in a new motor new ecm bcm new

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ok i sunk my 07 malibu 2years ago in water i put in a new motor new ecm bcm new fusebox under the hood passangerside fusebox car will not turn over with key but if i take the boostcables and clip it on the positive side of the batt and the otherend to the starter the car will start right up and if i turn the key to the acc position on the ingnation it will start if i turn key completly off it won't start but can hear a clicking noise comming from passangers side fusebox everytime i turn the key and my rpm's gauge speed gauge needles not moveing and odometer reads error just woundering whats going on with it i know its something electrical but cant find the sourse of my problems i need help