There is a fuse that is used for radio power and the body computer located in the under hood power center, fuse 10 a 10 amp fuse. You may have just tested the interior fuses. They made the fusible links into a sophisticated yet easier to service whole van power source. It has a black lid explaining each fuse and relay.
There is a section explaining this here.
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Wednesday, March 31st, 2010 AT 9:44 PM