dei 451m blows fuses-1993 dodge dakota

(Very Frustrated) I got a Astra Alarm system a few weeks ago. I was able to get a diagram for the wiring of the remote start (Thank you!). That works great! And the alarm works as well. I am having problems with the door locks. At first, we hooked them straight in the door. My truck's door locks has 5 wires. 1 hot wire and 2 ground. Orange-purple and pink-purple giving 12 volts when you press the switch to lock and unlock. I wish my system was set up to give a + pulse, but of course, it doesn't. After doing some research and finding a thread on here about using a DEI 451M, I ordered one. It's all hooked up now, following the instructions that came up with it. Everything was tested with a meter to be 100% sure. I can attach what all we hooked up to if that would be needed. The first time we tried it, it blew the 15 amp fuse in the DEI 451M unit wires. (The purple and purple-black wires came spliced together and are connected to the 12+ lock switch as directly.) Replaced the fuse with another 15 amp, and tried unlocking instead of locking. It blew the lock switch in the fuse box. It originally was suppose to be a 20 amp, but had a 15 amp in it. (We had blew it testing things before I got the DEI 451M unit.) I found a 20 amp fuse to put in the DEI 451M unit, and it blew the 15 amp in the fuse box. I've tried it twice, and it isn't blowing the fuse in the DEI 451M. Any ideas? I am aggravated with this thing. I would greatly appreciate any advice!

The locks have to be 5-wired not 3-wired.

Please show your wiring. What you've connected to where, I'll guarantee you've either one or both pairs of motor wires the wrong way round.

WHITE/ black: pink/violet - lock switch side of the wire GREEN/ black: the other side of the lock wire BROWN / black: ORANGE / violet - switch side Blue/ black: the other half of the ORANGE / violet wire Violet/ black: red wire (12 volts all the time) this is spliced with the violet wire and has the 15 amp fuse. Manual said you would possibly need a 20 so that has been upgraded. It is blowing the 15 in the fuse box now.. Which is suppose to be a 20. I am fixing to run to town to get a another pack of 20 amp fuses.. Not sure if that's what's wrong or not.

The locks are 5 wired..If it doesn't work like it should, I don't need it! :) Lol

Seems OK let me go and look at one! Correctly wired. Were you physically seeing the switch when you did this?

Yes, had a meter testing voltage and testing negative too..

I am hoping it is just the fuse.. I'm thinking adding the extra 2 relays, it will need more amps?

Sorry, ??

Do the locks operate at all or does it just blow the fuse. One thing I noticed is my info indicates ORANGE / Purple is lock side and Pink/Purple is unlock side. Also it's quite apparent that you have things mixed up and are causing a short to ground. Bigger fuses won't fix that they'll only better your chances for an electrical fire. How are you testing for switch and lock side of your cuts? Hint: view of the switch is NOT a good determinator.