1995 Buick Lesabre 95 Buick replaced lock cylinder still ha

Hi everyone, hope some one can help out. Lol Ok so about 3months ago the 1wire to my vats system broke. I called a delership and they told me $600 to fix. Of corse me being kinda hand I told them I would do it for that kinda price! Then tore into the stearing colom fixed the wire and the car started WOOT! Ok so 2 months later car does the same thing running fine then I shut it off and get gas, what do you know it wont start. Get the car back to my house tear it apart again seems the other wire broke. Bought a new lock cylinder that came with new vats system wires and installed it. Had the new keys cut and right rester pelet put in. Everything is fixed right, NO. I am stumped now. I tested the starter its getting power tested the fuel pump also getting power. Thats how I know I put lock cylinder back in right, when vats system wire breaks, your starter and fuel pump dont get power same thing happens when you put wrong key in (GM'S securty system witch they dont install anymore because on your gm's 10th birthday the wires to the vats system start to break) So here I am back to square 1. Anyone who has had this problem and fixed it know what I am up against. I have looked into ignition modualer but thats $200 that I dont wana pay if thats not the problem (as you know auto parts stores wont except electrical parts back that have been installed even if it didnt fix the problem) SO please please help guys and gals thank you for checkn out my post. And as for my ford windstar still running strong cant wait for ford to get there lazy. To recall them switchs lol will check back daily
EDIT just had the ignition control mod checked and its good. Starter has power so thinking that the starter might be bad going to take it off and test it. Still waiting any responses anyone else has any ideas let me know