Well I've solved my initial indicator problem - friendly car audio bloke managed to wrestle the ICU from beneath the dash and got the relays replaced so I've now got both indicators working, hurrah! Problem now is ... the alarm doesnt arm! Central locking works fine but indicators don't flash when I lock and the alarm doesn't set. Friendly audio bloke has taken ICU back out for relay people to check they haven't blown it up (they say it checks out ok) but still no alarm. Car audio bloke is flummoxed - can any of you lovely forumites help with any ideas please?