Use a small key ring "ring" the ring found on most key rings used to attach the keys to the key ring... Its quite fiddly, just put the roof down enough that the flap is open and you can gain access... Although please be aware this will self close after some time if you leave the ignition on... I used a pair of long nosed plyers to assist me, and replaced both sides to be sure they were both the same length... Remember to look for a small ring i found the one used on my wifes jaguar x type key to be the smallest and the one on our silent dog whistle too... Hope this helps, good luck!