Here is a link to the location. The view is from the firewall side; not from the
drivers seat side. As Ari stated, there are two screws, and a connector. To
access the switch, one has to remove the lower dash and work up under
the dash behind the mechanical part of the ignition switch (which also
locks the steering wheel and involves the "one-time bolt.") One can replace
the electrical part w/o involving the bolt or the mechanical part. I spent about
two hours doing mine; and could probably do it in less than hour a second time.
I laid on my back in the driver's seat with feet over the backrest and used a
mirror to see where everything was. The part cost about 60-65 dollars shipped.
It turned out that mine was not broken; only displaced because a bolt was
broken. I zip-tied mine back in place; because the broken end of the bolt was
still in the mechanical part. That still works; but, changing the entire unit including
the mechanical part would be more ideal. Once out the broken bolt part could
be removed and replaced. The one-time bolt can be replaced by a conventional
bolt; but is meant as a security feature (steering wheel lock feature.) Sorry
about long post. GL.
Acura Legend Online Service Manual (Page: 1019)