I appreciate all replies/help... First thing this morning with Battery fully charged and installed, she cranked, drove to auto parts store, checked charging system - battery/Alt test SAT. Pls note, lights, air, nor radio were on during the check. I did not use any auxilaries at all today and I cranked/started her with no problem several times. I failed to mention in initial post, at 25mi from home a loud buzzing noise sounded, coming from something behind the instrument cluster, lasted about 30 minutes and stopped. Radio started cutting out and in... during return trip, at night the dash lights were initially bright and then became dim, this went on until I arrived home and parked. Now I'm thinking... which function is causing the drain on both battery and Alt? Lights, Air, Radio/antenna, cluster instruments? I have the volt meter and will test charging sys with each function on individually and with everything on high at once. Anyone been here before? Thanks.