Here is my update. I wanted to wait a week or so to monitor for symptoms. So far, the only problem that has been fixed is the blower not coming on reliably. The ignition lock and switch are brand new.

The wiper issue and radio issue are still intermittent. I am starting to suspect that the radio is a wiring issue behind the console. The last 3 times the radio would not come on, I smacked the side of the console under the steering wheel and 2/3 times, the radio would turn on.

Looks like I can rule out the ignition switch for the last two items.

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1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge