Wiring help pioneer AVH-P4400

GasHog369 · August 29, 2012

Finally got the chance to pull the stock radio out of the truck and get a game plan.

I have the GMOS-04

I was told i needed this one because i have the bose amp/ sub. Even tho i am not using them.

The problem I am running into is the 2 small black plugs dont have a spot to plug into. I can see where the grey ones plug into the factory harnesses.

This is the aswc steering wheel control . This black box would plug into the smallest black harness connector from them gmos-04 but i dont know if it is supposed to. Directions arent clear for using both units.

Anyone have any knowledge working on these? I am tempted to just schedule a appt. at my audio shop.

Toolman82 · August 29, 2012

Are you keeping OnStar? XM? Do you still want the factory door chime to be active?

GasHog369 · August 29, 2012

I don't have onstar. I do have xm but do not care about retaining it. . I do want the steering wheel button ctrls which is whyI was using the module to keep them. I found it looks like the aswc steering wheel Ctrl plugs into the gmos-04. the one black larger plug on the gmos-04 shows a lot of the wires are speaker wires. There is no where to plug it into tho. Any idea?

Chris · August 29, 2012

My AVH-=4400 was straight forward but I dont have the Bose or steering controls. I'd hate to say it but take it to a shop, and remember to cut that piece out of the dash. A shop only charged me $40 to install it

http://www.gm-trucks.com/forums/index.php?showtopic=145897

GasHog369 · August 29, 2012

My AVH-=4400 was straight forward but I dont have the Bose or steering controls. I'd hate to say it but take it to a shop, and remember to cut that piece out of the dash. A shop only charged me $40 to install it

http://www.gm-trucks...howtopic=145897

Which harness did yours require? Did you have a lot of extra wires?

From what I can see I am going to have a bunch of extra wires

Toolman82 · August 29, 2012

The RCA plugs on the GMOS plug into the back of the new aftermarket radio. The SWC module should plug into the GMOS, yes. The headphone looking cord for the SWC should plug into the back of the radio as well. The red wire should wire into the new radio's harness along with black and yellow. The other wires are for amps, illumination, mute, power ant, amp turn on, etc...

That should be about it...

Anything else that doesnt make sense?

Toolman82 · August 29, 2012

There will be some left over wires, thats perfectly normal. They give you all the wires, because some installations need them, some do not.

GasHog369 · August 30, 2012

So i think i found what is screwing with my mind with this install.

It looks like the gmos-04 harness that i have is the wrong one to go with the box / or the box is the wrong one with the harness! The harness seems like everything is good, but the box only accepts the one connector on the on side. The other back connector will not fit. I was planning on getting this installed tomorrow. I wonder if i can find an adapter local to fit it , or if i could pull the wires and put them in the side in the spots they are supposed to.

The seller on ebay i bought this from said it was new, when i got it some of the wires didnt have factory ends on them and it didnt appear new. So i got half my $ back with the agreement of if it didnt work i could return for full refund. Id rather not go that route since i want it installed tomorrow. any ideas?

Heres some pics of what im talking about .

The first is the correct plug.

Toolman82 · August 30, 2012

Ya, def not the right parts. If I were you I would just get a door chime module, and keep the steering wheel control module. You dont need anything other than that if you're not keeping OnStar/XM/Bose. And maybe skip the door chime module since they're just annoying.

You will need to run an ACC wire from the IGN to the radio since our truck do not have this wire. It runs off the class II system. Pretty easy though. IIRC its a brown wire in the IGN harness.

spdracr219 · August 31, 2012

what year model is your truck

GasHog369 · September 1, 2012

what year model is your truck

2006 silverado...

info in my sig

spdracr219 · September 1, 2012

If you're not worried about onstar or your chime then you don't need any of the modules that you purchased. Just a best kits 2002 harness will due. there is no radio accessory wire in the factory harness so you will need to run one. The easiest place to find this is, to the left of the steering column, there will be a harness with a white, brown, and orange wire. The brown is your radio accessory. This harness runs from your ignition to the back of the fuse box. as for your steering wheel controls, I have never had any luck with the type of interface you purchased. I would recommend purchasing a SWI-RC from pac-audio. Here is the link for the detailed wiring instructions for your vehicle. It is about a 30 minute install for someone who hasn't done it before http://pac-audio.com/SWI/SWIAppGuide.aspx?appguideid=92&swiModel=Silverado&swiYear=2006&swiMake=Chevrolet&swiProduct=SWI-RC&swiRadioManu=Pioneer&swiOptions= I have installed professionally for over 5 years and this is the most user friendly module out there. If you have anymore questions please let me know. If interested I can tell you how to bypass the parking brake on that pioneer head unit also.

GasHog369 · September 10, 2012

Thanx for the help all,

I ended up going to my ghop that i have trusted for a lot of other stuff. I ran all the door speakers / wires and had back-up cam wired up except for trigger. They hard wired in the radio, and get everything working for me. I then did a little paint accent and made it more interesting. I think it turned out great!

Here is the backup cam in operation. I was backed up to my garage door. This was with my piaas below bumper and led's in the stock locations. camera made it appearbrighter than it is, but you can get the idea. camera is awesome.