Hello..Can anbody help..I have got a 1998 Galaxy 2.3 and want to top up my auto transmission..Is this the top up plug which I have marked with a yellow arrow..Its right next to the gear selector arm on the auto box..You can get at it from inside the bonnet..I can pull the plastic cap off and there is a hole which looks like a top up for the transmission..If not what is this plastic plug for..As other diagrams do not show this as the top up location..