. . Villagers utilized a negative terminal block from factory . . . the lead should be running to the negative connection on the controller via the voltage limiter . . . if you look closer, you will probably find another negative terminal block near the passenger side dash area . . . the lighting system should have it's positive feed coming from the second battery in the pack, via a fuse block, because it is a 16-12v limiter . . . however, you do not have 8v batteries so there is no place to obtain 16v to feed the limiter . . . you have a few options . . .
1. . . connect your light switch positive feed (it comes from a fuse block that gets it's power from pack) to a 12v source in your pack and remove limiter from system but remember to connect negative terminal block to appropriate ground point (battery or controller) . . .
2. . . remove factory limiter (as it is probably useless with your battery configuration) and install a 48-12v reducer in it's place . . .
3. . . install the proper 6-8v battery configuration and utilize the factory 16-12v limiter . . .
. . . as for the 8240 batteries, they are a cranking battery, not a battery designed for golf carts . . .
