Single DIN Cup Holder

[taylorbr]

So I'm thinking of swapping my aftermarket head unit (single din) from the Legacy to the SVX and thought that it might be nice to add a cup holder in the extra slot...something like this:

http://cgi.ebay.com/ebaymotors/SAAB-...3A1|240%3A1318

Has anyone done it or has any thoughts to whether it would work or not? I am going to put the radio in the bottom slot and the cup holder in the top. I really hate trying to drive this thing around without an easy to use cup holder...