Cold Cathode Switch Locations

[03-Galant-ES]

Ok so I got bored yesterday and after rotating my tires I was cleaning out my garage and found 2 sets of blue cold cathodes that I bought last year with intention to install under dash and under seats.

Probably doing the install this weekend, tested cathodes still work. Any ideas where to hook up the switch to be the least troublesome//least damage to the interior?

Thanks in advance.