big3 on a 93 deville

I have 93 deville 4.9L engine and I trying to do the big3 . The problem is I've done it before but this time the alt and battery is on the same side. So that means all that 0 guage on one side of the engine so what I came up with pos battery Y spliter 0 guage then fuse both ends with one fuse each. On the battery ground and alt ground can I use the same ground and y split it or use the batterys factory grounding spot and the alt make a new ground. Thanks1993 sdv

Alpine 4x6 6x9 5 1/4 swr-10d4

alpine v60

12.5 VGA flip down

Nettop pc w/10" touch screen

78nova

5-re audio 5x7 ,10" sub &

Xtx-500.5

"Take the faceplate off get the jumperpack"

Ok this is my only problem now since the alt and battery is on the same side can I use the battery chasis ground for the alt. or I have to make a new ground for the alt.1993 sdv

Alpine 4x6 6x9 5 1/4 swr-10d4

alpine v60

12.5 VGA flip down

Nettop pc w/10" touch screen

78nova

5-re audio 5x7 ,10" sub &

Xtx-500.5

"Take the faceplate off get the jumperpack"