Guys...I have been working on a 172, new gearbox is in place, the car started 3 days ago a few times, now when I try to start it tonight the red immob light is on permanently and the car turns but does not fire ( issue with broken wire or system maybe?) also the bloody alarm keeps going off when I open the doors or try and turn the ignition on?? Any thoughts?? Need Help lol , Kind Regards, Jamie