Repeat issue alt wiring

[Calioso]

I have been reading ur posts on threads about wiring alt. was wondering if u could help me out I have a 84 gmc c1500 sierra classic but I have a serpentine setup and am using a alt. from a 94 350 sbc the only problem I have is it makes a buzzing noise I have changed it out multiple times and upgraded it to a brand new one instead of remand I know it's a wiring issue. I can send u pics. The alt charges and my gauge registers voltage but I know that buzz means my batteries are draining with the ignition off and it's been proven cause I have had to leave my batteries on the charger when I forget to disconnect them. Well sorry for the book just wanted to give as much back story as I could if u can help me I would really appreciate it thanks.
The Cali Bear
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