I can tell you from recent personal experience that it's your ignition switch.
Go back a week or two in the archives.
Jaymac,  87 Vanagon GL

Kathy Jacobs wrote:

> The headlights, windshield wipers, fan, electric window all decided to go at
> one time. You can press the headlight dimmer switch and the brights will
> come on, but will not stay on unless you constant holding the switch. As you
> are holding the switch(sometimes) the wipers will work. This just happened
> overnight. They all were working the night before. WE have gone through the
> fuse box and none are blown. We also checked out our BIG Robert Bently
> Manual and no luck. Please help! We only have this one car running at the
> moment. OUr other car, a 73 Sqaure is requireing some top end work.
>
> Kathy Jacobs
> President,South Eastern VolksWagen Club
> Atlanta,Valdosta,Jacksonville,
> St.Augustine & Daytona Beach
> www.sevwc.com
> southeastvw@hotmail.com
>
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