1972 fiat 850 spider

The motor runs great tranny is good clutch is good the entire drive train is in good condition however I can’t figure out the wiring Everything was working fine until I put in a new battery and put the posts on the wrong side ever since then I can’t get it going there must be a fuse or fuse able wire and I just don’t know what I am doingWhen I bought the car over one year ago it was running I drive it home from Cedar city to st george UT it’s a 45 min drive a few months latter I made the battery mistake my loss is your gain it’s a solid body interior is crap and the top is in bad shape but the frame is solid
The buyer is responsible for pick up or shipping no exceptions
Deposit Required Immediately after end of auction and full payment Within 24 hoursYou are welcome to look at it in person before you bid and I will take more pictures Upon request