New HU, no sound while running.

[Chronosnight]

I just purchased a Kenwood Excelon KDC-X695, GMOS-04, and a SWI-JACK.


Took off the neg batter terminal, took out the old HU, installed everything, turned car on in accessory mode, programed SWI, everything seemed ok, even tested the onstar/door chimes. Then I turned the car on and...no sound, the HU is still lit up, says it's playing the cd/playing radio etc. but no sound, door chimes still work, onstar still works. but no sound from the radio.

I have a 06 Grand Prix GXP with the ****soon, er monsoon, stock.

I don't know if it's related but I unhooked the HU before I came in for the night, didn't want to leave it all exposed outside, and my interior lights wouldn't shut off, had to unhook the battery.

Everything was working perfectly before I started.

Any help would be hugely appreciated!
I'll take pictures of the wiring tomorrow if it will help!

-Mightbeinovermyhead

[simbah]

There are two adjustments on your GMOS-4, if you play with them you might get some sound, I did the same thing in my 06 GP GT w/ Monsoon and ended up replacing everything HU amp and speakers, as the Monsoon amp is a 8 channel amp with it sending lows to woofersonly and highs to tweeters I believe the only full bandwidth channel is for the center dash speaker, as far as the lights go I haven't a clue. Would have to look at your wiring to see.

[Chronosnight]

I have adjusted the sound on the GMOS, good idea though, while playing with it this morning I was able to get sound for about .5 seconds after the car is running then it just stops. still able to listen with the car in accessory mode.

[simbah]

Lets verify your connections

Gmos-4, 14 pin connector --radio
blue/white --amp turn on
red radio-- ignition
RCA-- RCA
these wires I did not hook up
brown --mute wire
green --parking brake(may not have if not video HU)
blu/pink --speed sense wire
green/purple-- reverse wire


swi-jack wires
black --ground
red ignition --12v
green --a7 on car connector
then you will need to run 12v to A6 on car connector, if you want steering wheel controls to work
wire to Hu with blue/yellow wire
GMOS-4 24 pin connector
yellow radio 12v battery
black radio ground
orange radio illumination
Please verify and we shall go from there

[Chronosnight]

GMOS - Radio - Didn't hook up the amp wire, as I couldn't find anything to hook it to, hooked up the mute wire.

SWI- Check

GMOS 14 pin - Didn't hook up the orange, as I couldn't find an illumination wire. Otherwise, check.

[simbah]

You should have an amp turn on wire blue/white on your Hu harness , you will need to hook this up to make your Monsoon amp work otherwise no sound
Illumination wire is also orange

[Chronosnight]

Fantastic, Thanks for the help! It works great, though I'm a little disappointed with Bluetooth quality, I will have to mess with the mic I guess.

[simbah]

Glad I could be of assistance,did you figure out the lights problem yet?

[Chronosnight]

It had something to do with having the harness hooked up w/o the HU attached, as soon as I put the HU back in this morning and closed the doors the lights went out, everything is working perfectly again!

[Mad Monkey]

disconnect that damn mute wire, its useless