01 tahoe aftermarket battery problems.

I have an 01 Tahoe with Onstar but without Bose. I have a Dual xdvd710 HU and am wiring the aftermarket head unit up with a PAC OS-1 harness. I hooked it all up and it works, the sound and the HU work fine, but after a bit I noticed that my battery had been draining pretty bad. So what could it be. I have the blue power antenna wired to blue on harness, and blue/white amp remote wired to blue/white on harness.Caleb

How long is a little while? 10min,30min,5hours. How big is the battery? Might need a bigger battery or a yellow/red top or a power cell. This might help you outCan't be loud then don't have it.

(power acoustik system)

Head unit- TID-896 7" TOUCHSCREEN

ovn1-5500d 09 and another one coming soon

4-12" mofos 12ft3 box to 40hz (wall)

2 batterys, 1 power

"...but after a bit I noticed that my battery had been draining pretty bad" How did you notice? Car won't start? did you measure voltages at the batt?

I noticed the battery drain about 30 min after I installed the HU that my car wouldn't start. It went from about 12 volts to about 9 volts. I have it hooked up right and I'm not pushing any large speakers. I think I have a bad battery. I charged the battery, reinstalled everything and I havn't had any problems again. Thanks!Caleb