Clock [Delete]

Hi - I have a 64 LeSabre Convertible that did not come with a dash clock. I have bought a clock and want to install in in place of the clock delete. I read somewhere that you need to drill 2 - 3/8" holes in the delete and insert the handle of a pliars and twist out the delete. It sounds barbaric.
How do I remove the clock delete and install the clock? Any help would be appreciated...
Thanks,
Matt

I'd be interested in knowing how hard to do this is too. I've wanted to put a clock in my '63 LeSabre for years, but I thought it'd be a real pain to do most likely.