You need to extend the CCFL High Voltage cable, if it is not long enough to reach the inverter. You'd better get a electronics friend to help you. Should be very easy for him. If it's done wrong. Leakage or shock may happen.

Please measure and calculate the cable length precisely. There is not enough space for wires which are too long. In this pic, they ARE 25mm/1" longer than needed. Reworking them is painful.