CHEVROLET TRUCK INSTRUMENT CLUSTER GAUGES TACHOMETER NOT WORKING

I Am Trying To Put A Tachometer Into My Truck. I Hooked It Up The Way Instructions Say Black Wire To Negative Battery Red Wire To Battery...

My Friend Has A Chevy 1500 And He Can Drive It For A Little Bit Until He Stops At A Stop Sign The Speedometer Will Stop Working And At Night...