My miggy has been parked out in the street for the last 2 weeks or so as I have been away on holiday/busy with work on returning etc. Got near the car and immediately realised there was a problem as the remote wouldnt unlock the door. So manually unlocked it and the alarm didnt go off. Then tried starting the car and all I got was the alarm button with the little mans image blinking and weak lights on the dash. Then as I tried starting it for the 3rd time the alarm went off and I just about manged to stop it with the keyfob. Then came this ticking noise from around the passenger side dashboard area. eventually a friend came along we used jumped leads and the car started with the alarm going off again for a few seconds and then stoppin of its own accord (not responding to the keyfob). Since then the battery's been fine and have had no immediate problems with starting or the alarm. Now as the car lives on the road I am not sure what has happened with regards to the alarm since I have left it there this afternoon.

My thoughts - could it be a faulty power sounder thats drained the battery or a weak battery thats upsetting the powersounder? I suppose checking the battery and alternator would answer some of these questions. But is there any other way of checking which is at fault or am I missing something else?

Should I be removing the power sounder? What is its function normally? would I loose any functionality as a result of removing it.