Crew cab door wont open

[TIDY]

Passenger side crew cab on my tipper wont open, i think its a broken wire as a few years back i fixed it when it wouldnt lock.
So, the thing is... its dead locked so wont open with the handle inside.
My question is how do you get it open so i can fix the wire again?
Its a bit hot this weekend to climb over the seats to take the door card off so im hoping somebody else has had this problem and has a fix before i tackle it.
Thanks all in advance.

[TIDY]

!!! NOW FIXED !!!
I had the idea of pushing the wiring loom in using a strong thin piece of wire in the hopes it would push the broken wire together and then unlocking with the remote... it worked first time.


Tbh i think i was very lucky there, but hey you have to take it sometimes, so now its soldered and heat wrapped and working good.
I think from now on i will only lock the doors once instead of the 2nd dead lock just in case

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