My car has a electrical gremlin it keeps popping the instrument illum and parkers fuse every time i flick the switch to turn my lights on.

Front lights work but not on parkers and rear parkers don't work but brake lights work. Also where the odo, distance to empty,spd,trip screen is that lights up at night but the rest wont. however cruise, and all the clusters other lights all do light up besides the green ones you need to see at night.

What could most likely cause this to happen.

Car has got a tow bar and trailer plug.

Its a Vt 99 model with Vx berlina front and rear lights, Lights have been in the car for a long time and this only started happening about 2 months ago.