Dave:
Here's a picture/diagram that might be useful for your wiring plan as
related to aftermarket gauges.....
There are several other bits of information in that folder that my
prove useful to you as well. Here's a link to the folder:
You are right...you have the option of picking up your ignition feed
up somewhere in the neighborhood of your cabin fusebox (under
dashboard) or you can run a line up from the engine bay black plastic
junction box. Totally your call but please ensure that you provide
circuit protection via an inline fuse (unless already fused).
All the best,
Brent
--
Brent Weide
Portland, Oregon
www.weidefamily.net/vanagon/
Brent Weide