This is how the basic 6V and 12V batteries are hooked...
Always look for the terminal markings POS + or NEG - stamped on the battery case
Find the FRAME GROUND cable and it will go to the GROUND here.. usually a full WHITE COLOR...
The other cables usually BLACK or different full colors other than white will hook to the 12V side show in the pictorial...
With todays CELL PHONE PHOTOS sure is easy to take pictures of things and then go in the house and make a printed copy of it. In the battery case use a zip lock sandwich bag and keep your battery wiring picture stored in it taped to wall close to the battery...
Roy Ken