I have started the install of a 03 mercury marduadar swap into my 95 thunderbird. I am having the problems with the wiring. I have just used the orginal wiring with the car but made it longer to accomadate the wider engine, but when I turn the key nothing happens. I have tried cleaning the battery cables and I have even had the solenoid on the starter checked. Nothing works, but I was able to get it to turn over before this happened. I am at the end of my rope any help would be great.