I have been in the market for a new head unit. I finally picked one out and then I found out that the wiring harness for my Bonne cost OVER $100.00 The radio I wanted to buy cost $300.00! After everything is said and done, I will be in the $500.00+ range! They said that if I went with a cheaper wiring harness, not only would I lose my OnStar(which I don't care to keep anyway) but I will lose my airbags and several other important peices. Does anyone have any advice? I am to the point now that I am considering buying a headunit for less than $200.00 and it will be mroe affordable to buy the harness.

you will not loose your airbags, the only things you may loose are on-star, and the chimes (door open key in ignition, low fuel, headlights on-engine off etc) When i installed mine, i hard wired it in on its own, i do not use one single strand of OEM wiring for my stereo.

where have you been Mr!?

i have been right here... same place you usually find me

I did the same as Toasty. The only difference was I used the factory ground, and constant wire, along with the illumination wire. You can find this Harness for $10 at Cardomain.
http://www.cardomain.com/item/SCOGM07B?vq_id=none

and this will be the antennae adapter you need.
http://www.tss-radio.com/volkswagena...er-p-4086.html

Some GM vehicles from what I hear, do lose the airbags and other vital functions when removing the stock cd player. Fortunately, the Bonneville isn't one of those vehicles.

not sure if they work but there are harnesses available on ebay for under $15.00 anyone know if they work?

Do they have the expensive harnesses on ebay? I would love to do it "right" but if I can't for cheap, I will do it the other way

i bought one that looks like it should plug right in and it has the red 12v power wire so idk it should work it it doesnt it only cost about 7 dollars

I dont think the plugs are gonna be any different in the back of the radio. Its the wires running away from the thing that has me concerned.

i am not positive, but i was under the impression that the OEM radio does NOT have a standard 12v turn on, but instead a low current signal from the data buss to turn on the radio, and if that is in fact the case, then a standard wire adapter will not work.
I COULD BE WRONG< i never spend much time thinking about or looking into it since my radio was already installed.>

My radio was in my car before any aftermarket solutions were even available, so i had no choice but to wire it from scratch, which was no big deal, since all of my speakers were to be amplified, and i was running wires to begin with.