Hi I have a ford galaxy that will not start its a 05 plate it will not turn over the light on the door flashes when I lock it and when its unlock goes out but when I go to start it put the key in as normal wait for the glow plug light to go out turn the key and nothing happens the I get what I can only describe as an alarm noise from under the dash board I take the key out lock the door and the noise stops can anyone help im at my wits end ive tried reading up on this read alot about relay 30 but I dont have 1 any help plz