Fuse panel upgrade to ATO type - Pelican Parts Forums Porsche / BMW / Mercedes / Audi / Volkswagen / Saab / Volvo Fuse panel upgrade to ATO type. The fuse upgrade is going into my '72 project along with relocating the blocks and battery to the smuggler's box. Thanks for the info and be sure to post more details as you get them.New company and new products. 'Classic Retrofit' 911 FuseProjector headlights for 944Fuse panel upgrade - Pelican Parts ForumsMy "ReFuze" panel upgrade adventureSee more results Porsche 911/928/944 Electrical System Upgrades | 1965-1989 Remove the red 2.5 cm/2 wire from fuse #16 and run it to the new fuse block and attach it to the #1 fused terminal. #2 fuse should be a blue 25 amp, as it will still power the warm-up devises as well as the #2 fuel pump. #1 fuse can be a red 16 amp fuse. These are a few simple upgrades that improve your reliability and safety.