my wifes E34 525i sport has a flat battery. not bad i thought until i tried to unlock it. the alarm wont work and when i try the key in the door locks, there is a quiet thud from the central locking but not enough to unlock anything. the door pins won't lift when i do this.
i can unlock the boot though.
i reckon if i can get power onto it, then i'll be alright but i can't get under the bonnet or to the battery (under the rear seat).
any ideas? is there any permanent positive wires in the boot that i can feed, just to get the doors open?
bricks though the window etc would work but i'd like to try a better and neater solution first!

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