i was just wondering if you can hardwire a stereo into an 02 cav. i really dont feel like paying the $100 for the t harness and my local shops dont carry the GM05 scosche harness. anybody know the wire colors and what they go to?

get a wire test light and start testing wires, follow the ignition harness under the dash and you can test right at the pins. find a switched source and there ya go. just make sure its not the brake pedal (i've done this myself on a/f guage, lol)

doesnt the radio have these relays and crap for air bags and such? if its that simple i can do it tomorrow.

im willing to buy the harness and ship it to you so you dont @!#$ @!#$ up. pm me if you want to

like i tell every one....just go buy the saturn harness....if you dont know what your doing dont hardwire it. You still need a switch source, easiest way is to run a wire from the wiper fuse....i think the metra part number is 70 -7002, buy that and just reverse the speakers wires (they are pinned differently on the saturn harness) No the radio has nutting to do with the airbags....they just say that to get you to buy the 100$$ harness. Only thing you will lose is door/warning chime....

actually hard wiring a deck is very simple , if you don't want the fancy dimming options some come with, all you need is a constant power (battery) a switched power (wiper fuse) and a ground (chassis) then after that it's just wiring up your speakers, although it is easy it's even easier to go get the saturn harness.

DO NOT DO THIS!!!!!!!!!!!!!!!!!!

Look above at the sticky and buy the $8.00 harness from WalMart. DO NOT EVER CUT A PLUG OUT OF YOUR CAR, or you will crawl into a shop where someone like me works and we will berate you to no end and charge you well over $100 for stupidity (no joke) to fix everything. All this does is compromises the integrity of the vehicle, which you will not be the last owner of.






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i thought i was the only one who got mad when ppl sterted carving the wiring up on a car.

my dad took one of his cars in to an audio shop about 15 years ago and the first thing the guy did was cut the connector off
of course he cut it 3" behind the dash well when time came around and i got the car the radio was "haywire"

it took me several hours to fix thank god subaru still carried the connector so i wired it back in and havent had any trouble since

ive had to redo several friends cars because they did this and i charged them $50 for the install because i had to trace the wires
what a great friend i am right (



driving fast never killed anyone it was the sudden stop

Walmart carries the GM035 harness. Don't know what the GM05 harness is.

im guessing he has on-star so the $99 is for the moduel and harness that allose the onstar to function GMOS-01
http://www.crutchfield.com/App/Product/Item/Main.aspx?g=751&i=120GMOS01&tp=678

cant you resize your sig? that @!#$ is annoying kthanksbye

and please show me a 02 cavalier with onstar

i don't see the huge problem with hardwiring a stereo unless there are other features like onstar or others (which are not on j-bodys) but jsut recently i had to fully hard wire my freinds deck in his 91 cavy, the problem was that the old wires were rotting out (his car had water damage) but it only took us about 45 minutes to completly re run new wires to all 4 speakers, rca's for the subs and the 2 powers and a ground.
don't get me wrong it's so much easier to just buy the harness, but if the guy wants to hardwire the deck i say let him do it, the only hard this is knowing what color is what on the speakers and i belive they give a list of the speaker colors in the sticky.

ive swapped decks from car to car and gone from factory to aftermarket so many times that i think i would have hung myself with the wire i cut from the car by now if i would have hard wired the deck. think about it... are you going to keep this deck forever? are you going to keep this car forever? what say you when you have to change the deck in that car because you want a new one or change cars and you want to keep that deck and put it in the new one?

its not worth it... go buy the harness.



1997 RedR - ZedR

ya but also think about it, it's essentially the same as using the harness, all the harnes does is convert teh factory wiring to a universal wiring but ti's still all the same, just cut off the deck wires with a few inches to spare. unless u plan on putting the factory radio back in, which is understandable but if you never plan on rreturning the factory radio why not hardwire it, i'ts not like all aftermarket decks have different wiring schematics, even if they do they all need the same wires, just possibly different colors

I just knocked myself out from smacking my head off of my dinosaur. I can't believe this garbage spews out of peoples mouths.

sorry guys, im oldschool. i use harness now but its really not that big a deal to snip a wire harness off. back when i started you didnt have wire harness. its becoming a lost art now. ir really is no diffrent then a harness. your taking the wire harness and connecting each wire to yoru radio, or your taking each wire from the car and connecting it to your radio, the only diffrence is with the wire harness you can do that connection on your dining room table versus doing it in the car near the dash.


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thank you sndsgood, thats exactly what i'm saying, it is easier to use a harness but it's not difficult to hardwire.

IMO if a "correct/proper" way of doing something exists, do it the right way or dont do it at all. dont be cheap.

wel theoretically, hardwiring is the proper way to do it, no user manual that comes with a head unit tell you to buy the corrosponding harness, it just tells you what connections are needed to work the head unit, a harness just makes it easier and allows you to return the factory head unit if so desired

well i tried hard wiring it, checked all grounds, hot wires, and such but my gauges quit working, my lights dimmed, and all the idiot lights came on. im no novice to hardwiring ive done it a few times in many cars but with the class 2 wiring i wasnt sure if it was possible. i was just wondering if anybody had a list of wire colors and what each wire was for.

ridin_low07 wrote:well i tried hard wiring it, checked all grounds, hot wires, and such but my gauges quit working, my lights dimmed, and all the idiot lights came on.

ridin_low07 wrote:well i tried hard wiring it, checked all grounds, hot wires, and such but my gauges quit working, my lights dimmed, and all the idiot lights came on.

ridin_low07 wrote:well i tried hard wiring it, checked all grounds, hot wires, and such but my gauges quit working, my lights dimmed, and all the idiot lights came on.

That's part of the point we are trying to make.






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ugh... that sucks..

Almost as bad as trying to clean up someone hackjob, and having roughly .029" of wire that you can pull out the dash to solder/ crimp connect onto.



Elemental Designs
Performance.Mobile.Audio.
alexl@edesignaudio.com
Warehouse Manager

Don't get me wrong but I used to hard wire before harnesses came out. Even still with older vehicles there are no harnesses and you have to hard wire. What kills me though is the hack jobs that randomly connect wires and as long as noise comes out of the speakers, it's "working". My car is hard wired, then again I only use 1 of the factory connections. I ran a new power wire and ground for the head unit, I only use the ignition from the stock location.

Mennitti wrote:DO NOT DO THIS!!!!!!!!!!!!!!!!!!

Look above at the sticky and buy the $8.00 harness from WalMart. DO NOT EVER CUT A PLUG OUT OF YOUR CAR, or you will crawl into a shop where someone like me works and we will berate you to no end and charge you well over $100 for stupidity (no joke) to fix everything. All this does is compromises the integrity of the vehicle, which you will not be the last owner of.

my car is hardwired. please dont make fun of me

and I wouldnt touch an electrical circuit with a 1922 test light. Multimeter. use it learn it love it.