Hi, please can anyone advise. I had a flat battery and attempted a jump start yesterday which didn't work and the jump leads went hot while smoke was coming from the connectors. Breakdown man today advised he thinks I had them incorrectly connected. Got the car started today anyway but the nav/entertainment system wont switch on. I believe the likely hood is a blown fuse and as its night cant check till tomorrow. Can anyone confirm whether it likely to be a fuse in the car or under the bonnet?

Thanks