Should be fine between a Ph1 and Ph2. Its the Ph3 thats different.
Nope, Ph3 works just the same as Ph1, Ph2.
Straight swap yes.
TO remove the clocks, undo the cover around the centre of the steering wheel. (Three Torx underneath in the cover).
Now if you look up from there you will notice TWO black torx again, these hold the dials in a the bottom.
Remove these and remove the top ones from, the dials.
Pull forward, disconnect the speedo cable, then disconnect the three electrical plugs at the top.
Job done.
To re attach them follow steps in reverse.