You should be able to find various old topics on some of faults as individual or joined in. In my 1.8 the alarm was down the left wing by the washer bottle, just undid the connectors to stop the random alarm. With regards to fobs have you replaced the batteries and re programmed the alarm as per the handbook. The interior light is common and if I recall you may be able to bend the connectors back abit as i think it is those that may be connecting with the metal surround. Oh the memories!