HI, For over a year, my 2000 VW JETTA TDI has been my weather man. After a rain, when I open my car door the alarm system fails to reset, so that when I start the engine I have to wait 30 seconds listening to the horn. Recently I have discovered that if I go to the trunk and open it with the key while the alarm is still sounding, the alarm system will reset thus turning off the horn. I do not use the remote to open the car as this has stopped working a while back (probably battery).
Given this automotpathy, can someone suggest what needs to be replaced and if it is possible to do this myself.
Regards, Barry