JoelHowell
New member
Looking to go ahead and upgrade the factory grounds and alt power supply cables to OFC 4 gauge prior to doing the rest of my work car build..(2015 Sonic LS). Have done this before..but having trouble finding my engine ground and alt to pos supply. I really dont want to have to get under this thing to do this..but have a feeling that is what it is going to come to. Any good tips?