When first turn key on to power unit up horn cycles on and off dash dont power up properly. Have noted the K1 comes in fine k2 does not if run key switch a couple times truck will power up properly I have battery voltage to both contactors but the negative does not test like a true negative on either contactor weather it works or not. I was advised to changeand I have changed both k1 and k2 contactors have checked all wire connections the control wires come from the a1 and a2 controllers. Is this a controller problem?can I take the negative signal from k1 and use it for the k2 in order to get this unit to power up correctly