As promised, here's the link to the wiring diagram for the 12 V LED, battery indicator display.
http://new.photos.yahoo.com/cwphoto2/?change_count=0

As of 4/26/07 here is a link on eBay for the company that sells these: http://cgi.ebay.com/DC-100A-Mini-Red-LED-Digital-Current-Amp-Panel-Meter_W0QQitemZ250099451301QQihZ015QQcategoryZ25411QQtcZphotoQQcmdZViewItem

The name of the company is coldfusionx, so doing a Google search in the future, one should be able to find the company. The same company also sells the voltage regulator. You'll have to scroll through the various pages in their Ebay store to find it, but I can assure you it's there. Total cost is about $30.00

The electrical diagram is a little bit crude, but it's a heck of a lot better than what I used to the original wiring!

As with any electrical project, you are proceeding at your own risk. I take no responsibility or assume no liability if there is a problem.

The project took me about three hours total.  I think most list members should be able to handle this, assuming average mechanical ability, soldering skills, etc.

Best,

Troy