Hi This vehicle belongs to our panel beater and I am getting ear ache with it, (and him). Alarm goes off intermittently. Using solus will not read an astra G but will an H. Most likely would be wrong imob anyway. Was going to try this anyway but not got key 47.(Now on order) Seems to go off when car cools down after a hot day. He has ordered a new power sounder ultra sonics. Is there anyway of switching off the ultrasonics? Cheers Les