hello..

I have had the avic z2 installed in my 09 Chevy Tahoe

The problem is that the sound quality is so so bad espitally from the ipod

The factory head unit sounds much much much better

Any idea what’s wrong?

I think you need to give more info regarding the problem and your installation to get any help

Cheers Andy

like i said the factory HU sounds much better

the avic's sound is muffed and when i turn up volume it distorts

i had it installed at the shop

my question is what might be causing this problem? and how can i fix it?

thnx

anything?

Again, not enough info to diagnose a problem that could be a million things wrong. Just for starters: defective HU, poor wire connections, improperly connected by installed, speaker wire polarity backwards, HU settings to include EQ, sound stage, bass settings, subwoofer settings, on and on and on.

You might try using the fader/balance and see if you can isolate the issue to a certain speaker. You could also test to see if the front left speaker is wired correctly as the front left when you fade to front and balance to the left. Check them all.

The Z should sould the same or better than yoru stock radio. BTW, what source are you using to determine the stock sounds better? AM/FM, CD, etc?