Help with electrical system

[hardrock2401 8]

I have a 1997 Grand Am and this is what the electric consists of, stock 105a alt, deka primary batt, 1/0 for batt to chassis ground and motor to chassis...havnt yet done alt to batt. My voltage is dropping to 11.5 on some notes, the amp is a saz1500....I need help deciding what else I need to get the voltage up and stable. The XS power d1200 I can fit under the hood as primary but the d5100 is to big and I dont want to do a second battery. Should I get the d1200 or get a h.o. alt, if you guys need any more info please say.

Thanks for any help

[j-roadtatts 1,129]

For starters, put the wire between the alternator and the battery man. This is probably most of your problem. Do this and report back.

[CrazyKenKid 64]

For starters, put the wire between the alternator and the battery man. This is probably most of your problem. Do this and report back.

x2 do this and report back! i have a 95grand am and once i did that all was well again! lol!