Thread: Wiring Harness Question!

awesome thank you!

You guys are awesome. Took me a while to find a thread like this. Thanks so much. This is good for both single and double din stereos correct? As i have a double din just sitting around.

Originally Posted by spac31

You guys are awesome. Took me a while to find a thread like this. Thanks so much. This is good for both single and double din stereos correct? As i have a double din just sitting around.

i installed this headunit so yes

@des19
so would it be different if used a gmos-1 instead of a gmos-4 since my car is not amplified?

@2dee11
Wow, that thing is nice. New Pioneer model? Does your unit still stay on until you open the door when you turn the car off? where did u get the 12 volt for switched power? Pic?

i have a 2005 base model, so this could be a little different than yours. i used:
this harness adapter Amazon.com: Metra 70-2003 Radio Wiring Harness For GM 98-Up Harness: Car Electronics
with this antenna adapter http://www.amazon.com/gp/product/B00...ls_o01_s00_i01
with this dash kit http://www.amazon.com/gp/product/B00...ls_o02_s00_i01
aswell as a similar add a circuit from autozone (or loca autoparts store) like this one Cooper Bussmann/ATM fuse tap converts one into two fusible circuits - 10 Amps maximum on added circuit (BP-HHH-RP) | Fuse and Accessories | AutoZone.com
i did end up losing my door chimes and onstar, but this was no problem for me because i hated the chimes and never used onstar...

i got my switched power source using the add a circuit in the "sun roof" fuse on the passenger side fuse box (i dont not have a sun roof but all grand prix's have this so ive been told)


closer view


i just ran the wire hidden up under the dash to the head unit

finished pics






yes the radio does stay on until i open the door after i turn the car off. The model is the Pioneer AVH-P1400DVD

I hate that they put the USB port in the front of the radio I think it looks cheap to have wires coming out IMO. I personally wouldn't spend that much on a unit that does that. But I'm glad u got everything working I will be installing a double din soon also

@2dee11: so i found the add a circuit. do i put two 10a fuses or do i put the 10a fuse on the top and the 20a fuse on the bottom?
@des19: sop i've been looking for a harness but they all seem to be 70 and up. any specific retailer i should look for?

Originally Posted by illy

I hate that they put the USB port in the front of the radio I think it looks cheap to have wires coming out IMO. I personally wouldn't spend that much on a unit that does that. But I'm glad u got everything working I will be installing a double din soon also

i agree i realized this about a week after i got it, but oh well!

@spac31 umm... i think it just depends. my add a circuit was capable up to 20A i think and i put it in the sun roof which is 20A so i put two 10A fuses in it

Okay so if i pull my stock stereo out to plug in the new wire harness and make sure it works, will it lock up on me?

I don't think so.. I took mine out then realized I had forgotten a CD in it and plugged it back in to get it out.. seemed to work fine when I plugged it back in

okay guys i got it going! Now one last question, 2dee11 did you bypass ur parking brake?

sorry for the late response, i've been busy with finishing up school this past week but yes i did bypass it

This harness will keep all ur chines, alerts, onstar, and the rap. its expensive but well worth it!
Axxess GMOS100 Wiring Harness for Replacing the OEM Radio in GM

THanx guys... Decided to go with the metra harness, (didn't really see the need for the on-star or warning chimes) and I managed to fix the whole parking brake thing.

I was wondering if with the harness are you still able see you km you have driven, are you able to see Trip A and Trip B feature, and do you still get the warnings for oil changes and stuff? I wanna change the radio but i dont wanna lose the km feature, im not really worried about the calendar.