I found these schematics after a call to the VDO customer service site. I figure its still a GREAT idea to ask questions before install to use others experiences to an advantage. Does anyone have an idea about ammeter capacity (30, 60?) of the stock, in dash,gauge cluster Task Force Series trucks? The stock unit shows charge (maybe 1/4" past zero amps mark) after first start of truck until charge is satisfied. The idea of the second ammeter is to see what this system puts out for amps, as well as voltmeter for charging system performance. This preference of ammeter vs voltmeter was covered in other previous posts.