alien dash implant

Do your gauges work now?
when I got the car it had aftermarket mechanical gauges gauges.The fuel gauge did not work so I installed an Autometer gauge by splicing into I think a blue wire.I will see now if that gauge works.I can also hook up a temp gauge.The ammeter gauge does work but lately it reads a little high-just past halfway until a load(wipers,headlights) then it levels.I have 13.6 at battery and running about 14.6 volts so thats fine.I read to bypass the ammeter you remove the 2 wires and connect them and then run a voltmeter.Is that correct?