Hey guys I finished doing the timing belt job. Thank you to everyone who helped and gave me advice. It helped tremendously I feel like I can do it in 8hrs instead of 20hrs. Lol.

Anyway I tried starting it and it turned over but it didn't start so I tried again and it wouldn't turn over and had low voltage symptoms. I suspected the battery was bad. So I got a new one (warranty from Costco &#128077. I put it in and it wouldn't turn over. It also has low voltage symptoms. Tried jumpstarting with a good battery nothing still low voltage. The headlights won't turn on and the relays just keep clicking. I got a brand new battery and a charger so the problem isn't that. When ever I step on the brake pedal or turn on all the map lights I hear a buzzing from around the driver side firewall. Could it be a ground issue? Or a main relay issue? Did you guys ever hear of a main relay going bad and giving low voltage?
any help is greatly appreciated. 🙏 thanks