Would anyone know about the problem the V70 isnt starting?

I exchanged the Radio and it worked, i parked the Car 2 weeks ago up due to selling.
Now, the Battery is charged, even tried with a relative new one.

The symptoms the Car is doing when you turn the Key there is a clicking coming from the Gearbox but is not starting.
no error messages on the Computer.

i tried to find an answer for the last 6 hours as someone wants to collect it tomorrow.
any ideas where to look or whats happen now with it.


since i bought this car i have nothing as trouble with it and would like to see it going tomorrow but how can i start this thing ?
please help !!!!!!!

It was running a couple times after i parked it up and put the original Radio back in. just now after 2 or 3 weeks its not doing anything. with being automatic the Brutal force of towing it untill it starts is impossible.

its a 2.4 Petrol Automatic