How do you change starter relay on 1996 Cadillac Eldorado?

On a 1996 Cadillac Deville the starter relay or starter enable relay is located under the hood on the drivers side. Remove the black plastic cover that encloses the fuses and relay center. There are several relays in there. You are looking for the relay that has a Red 10 gage wire, a Yellow 10 gage wire, a 16 gage Yellow with Black stripe, a 10 gage Purple wire. Locate this relay unplug wire and plug it into your new relay. I have been told that the relay is a dealer item. The parts stores say that it is a square gray, four prong relay but, this is not true, wrong part. If you have a volt meater test your wires, the red 10 gage wire should have 12 volts with the key on. The 10 gage Yellow wire should have 12 volts in the crank position. The 16 gage wire yellow with black is a ground in the crank position. The 10 gage purple goes to the starter if you use a jumper wire and conect the red to the purple the starter should crank. Hope this will help good luck !