ford mustang 2003 key immobilizer problem

Hi, Im having issues with my PKFM immobilizer. Its definately that because when i remote start with the key in the of position it will just crank. When I try to program the unit heres what happens. First, the unit right off the bat is blinking a steady slow blink. When I insert the key and turn the ignition on it either goes out totally or just blinks. Now this is because ive tried many different wiring setups to get it to work. Ive read that the orange wire needs to be wired to ignition and the brown wire to ground when programming and i did that to no eval... Now I dont think that my keys are the original keys that came with my car although they do start the car on there own. Maybe thats an issue? Either way if the key thing is a problem whats the best universal kit i can buy? Id like to stay away from the antenna loop thing if possible.

What unit are you using for the remote start? As long as both keys start the car they are fine. Make sure the unit is flashed to PKFORD v3.00 software. http://www.xpressdownload.com/getdocument.aspx?documentid=1057 There is your instruction manual, for your TX and RX wires. Your brown wire should go to your GROUND WHEN RUNNING wire on your remote start. Bypass programming is the easiest it can be. Key on till LED and security light goes out. Done. Then remote start. Does your remote start with the key in the on position? Yes? Then it is a bypass issue. If not then your starter wire is not outputting. Does it remote start in the accessory position? If not check your ignition wires. If it does check your accessory wires. This is a VERY simple car to do. If you need step by step instructions after what I have just given you, you should probably consider professional installation for the safety and long life of your car. But we are willing to help you as much as we can.

The alarm/rs is the viper 5901 I personally flashed the unit to the 3.00 firmware already and it made no change I double and triple checked that the tx/rx wires are going to the right wires. I am using the D2D cable which according to the instructions the GWR wire is going through that.. Now Since my car is a manual transmission, it states that for initial programing you should ground the GWR wire. Ive done both ways, niether had any effect. The remote start works in all 3 positions, (on, off, acc) as long as the key is there, once its not, doesnt work. I know it seems easy, just dont know why its not working. Wondering if anyone saw the same light status i did or not.

ttt

try switching around the tx/rx wires . ran into this many times and that was the solution i found . mis wrote on the bypass's" I see wire diagrahms "18 yrs+ of installing - not good on the brains LOL

ill try both of your suggestions. however my mustang is a 03 and according to the instructions i dont need 2 keys just one... although i do have 2 keys