Hey everyone I’ve done some searching around here but haven’t found much. I want to put a new head unit in but like an idiot I cut the factory plug off( despite having female adapter) and blew a few in my amp so I wasn’t getting constant 12 from the battery. Soldered in a new fuse hooked the plug back up and I can’t even get the factory unit to fire up. I read some where these 99’s have a odd ground setup. Any guidance would be appreciated!