The 92 does not have that terminal, the trunk should open with the key by trurning it 90 degrees and then pushing the button. Oherwise a trickle charger thru the lighter, but the key must be on. The other options would be to lift the passenger side front carpet and find the large battery cable from the trunk. If all that fails a little bit of pressure on the line coming from the locking pump from a bike pump.