so last night i managed to remedy the situation!
pulled out the red "fuse" in the fuse box and clipped the positive lead of a set of jumper cables to it, then the negative clip i attatched to the steering column.
attatched the positive and negative to a spare battery i had placed in the drivers footwell and the alarm activated.
shut the car door and locked the car with the key in the lock.
pressed and held the button on the key fob and the frunk popped open just like that!
i assume when the battery in my car died the doors were locked. using the key in the door the car still didnt know it had been unlocked due to the dead battery so the buttons at the side of the seat didnt work (safety feature so with the roof down and the doors locked someone cant reach in and open the 2 trunks). so i had to shut the door and lock it and use the key fob to open the frunk as the key fob will work with the doors locked or unlocked!
i also found the beldon cable had just been stuck down the back of the middle fron radiator so there wouldnt have been much chance of me finding it! it has now been re routed
