Alarm/central Locking Beep, Dash Lights, Heated Seats

[DELRIO]

have recently had some misfiring problems and had a bit of learning experience replacing plugs, coil pack and leads.

there is still an intermittent misfire but i put this down to using after market cheaper parts rather than genuine (over priced) ford ones.

however, the car running fine, for now.

BUT thtere is defo some kind of little electrical gremlin goin on tho cos even tho she is runnin fine atm, the alarm beeps and indicators flash sometimes when i UNlock the central locking (never did this for the first 3 years of owning the car)

and also sometimes there is a delay in my dash lights coming on when i turn on my headlights.

PLUS my heated seats dont work but i just assumed that was a fuse?

i never really use the heated seats so havnt bothered to replace the fuse, but could this be causing these knock on electrical annomalies???

as usual any input greatly appreciated :)