Electrical issue with new install

[Scooter720]

Hi, I just installed a new custom stereo system in my 2002 Tahoe and I have electrical issues now. Headlights and interior light flickering and I hear relay buzzing in dash. Dash gauges freaking out. Radio turns on then shuts off infinite loop trying to power up. Even when I disconnect all of it still does it. I think I may have damaged the BCM. Truck starts up runs fine though. Has two amps, one for the crossovers and one for the sub. Running 1/0 gauge wire to both power and ground using distribution blocks and 100A fuse at the amps all under rear seat and 250A at the under hood battery. I connected everything perfectly to the best of my knowledge. Not sure what's happening here. Please help. Getting only 7.5 volts to the amps and battery is at 12.6v, with alternator running 14.1v.

CT Sounds Meso 6.5” 500 Watt 3-Way Speaker Set​

CT Sounds ATv2-125.4D 4-Channel 800-Watt Amp​

CT Sounds ATv2-1400.1d 1800 Watt Amp​

BOSS Audio Systems BCPA10RC Head Unit​

 

[1aespinoza]

So this is normal and I don't need two batteries for this setup?

Yes, it is normal. High output alternators for GM trucks/SUVs are quite cheap nowadays. I would rather get that now and a second battery down the road. Mine was about $150.

 

[Scooter720]

Yes, it is normal. High output alternators for GM trucks/SUVs are quite cheap nowadays. I would rather get that now and a second battery down the road. Mine was I will try hooking up the other amp in the morning.

Okay I will order an alternator try hooking up the other amp in the morning. Appreciate the help.

 

[Scooter720]

Okay everything is working good now. Thanks for the help guys.