After reading about these on the site, I decided to buy one. 2 of my friends also wanted one, so I ordered 3 on Ebay for $2.50 each. I first tested it in my VW and it worked fine. Then I put in the TBird and couldn't get it to read anything. The large chrome bezel, around the cig lighter socket, is so thick that it did not allow the bottom pin in the voltmeter to contact the the + part of the lighter. After looking at it for a while, I decided to drill the bottom pin and slip in a 1/2" by 1/8" pop rivet. Stuck it back in the cig lighter and it works like a champ. It's nice to see what you charging system is actually doing. The cig lighter is wired to battery + so it will stay on all the time. Don't really think it would pull much power out of the battery, but I just pull it back a little in the socket and it goes out. Just thought I'd pass this along.
Nyles
Nyles
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