SC cobaltss15

Okay so yesterday i installed the avic d3 into my 2008 cobalt ss tc... everything seemed to work fine. Today i turned up the volume all the way and it only sounds abbout half of what the stock system was putting out. I was always told with an aftermarket head unit it should be louder. Is this normal or is it that i wired it wrong. I mean it seems to play fine, just not as lloud as the stock system would go.
thanks sam

PS: also i used the Gmos lan-04 connection for my cobalt because of onstar.
Thanks again Sam

ssweeet

iTrader: (2)

i had mine professionally installed. i don't have onstar, but i had to get a wire harness for my car as well. this isn't normal. i am not knowledgeable enough to know how to solve your problem. sorry.

ecotecon18s

have you adjusted the sound settings? after a little tweaking I hardly get mine up over 13 because it is so loud...

SC cobaltss15

yes i have adjusted sound settings.... the only thing i have found is someone said there is a screw that needs to be tightened that adjusts the loudness level. Havent found that screw yet! Any help?

EmperorJJ1

iTrader: (5)

its on the gmlan module itself. the module is a black case with 2 harnesses and a knob on it somwehre. u cant miss it

07blackss86

This, but be warned, if you turn up the volume on the box you are going to be turning up the volume on the door chime. When I did mine the chime pissed me off until I ended up bypassing the factory amp for my 4 channel