'77 280 with the 7127 GM alternator (internally regulated) with aftermarket stereo and fusible link upgrade I have a few issues. The main symptom is not charging. Besides for the battery not charging the other symptom I've ever seen is with the voltmeter and interior electronics. When car is off tbe voltmeter reads 0 volts. When the car is off all interior accessories also do not work. Hazards, radio (doesn't save presets,clock, cd track,etc), horn, dome light, dash lights (with headlights on)...) I turn the car on and nothing happens unless I rev the engine above 2700rpm. At this point the interior comes alive Horn, lights, radio, etc all start to work. The battery does not charge (shows 11.8v and dropping slowly) but of course my voltmeter starts to work and shows 16v with the charge light on. Just to rule out a few things I had access to a new battery and Reman/New alternator that have already been replaced. I did a voltage drop test on the positive side (positive post to alternator) and reads well above .2volts more like 3.0v . I'm somewhat lost. I've had 2 z's luckily no electrical issues ever but with all these upgrades/changes I'm not even sure where to start. WarStep '78 "The learner" Silver 280z RIP- Rust '76 "The Favorite Child" N42/F54 Persimmon Red 280z RIP- Garbage truck :mad: '77 "New Toy" KH3 Silverstone 280z