View Full Version : New head unit, now my speakers are quiet?

06-09-2013, 01:40 PM
I just put in a pioneer DEH-x9500BHS into my 07 trailblazer.
and now my speakers are super quiet. at 30 it sounds like you would expect at 5.
the integration adapter I bought is the Axxess GMOS-01.
and the speakers I put in my doors are the
Cerwin-Vega HED365
any Ideas or common mistakes that cause that?

06-09-2013, 02:23 PM
out of phase , need deadener ,amp them

06-09-2013, 02:25 PM
How do I correct the phase issue?
and the stock head unit was way louder with the same speakers. I have had the set up minus the aftermarket Head unit for a month or so now.

06-10-2013, 07:42 PM
that deck goes to 65

06-10-2013, 07:45 PM
You may not have it wired correctly... On a lot of those GM "interfaces" you have to cut off and remove the RCA ends, then hard-wire into the harness for output to your speakers...