Installing Double Din Alpine Stereo

[bluebear15]

I'm installing a Alpine INE-W927HD which was previously in a different car of mine now into my Tahoe. I've also installed a few stereos before. For whatever reason when I have the Alpine plugged in and connected it won't turn on because it's not seeing any voltage from the "key-on" red wire. I read the voltage at the wire with the key on and there's nothing at the stock connector. When I plug the factory stereo back in then I have 12V to that same red wire at the factory connector. I don't get it. Can anyone help me out?

 

[Danny3737]

It almost sounds like a ground issue

 

[bluebear15]

It almost sounds like a ground issue

I was thinking maybe something wasn't hooked up right. Since the factory one works but the Alpine doesn't get power on the red wire

Anyone have a diagram of the factory pin connector?

 

[bluebear15]

So doing some research around on other sites and looks like my issue might be the Class 2 Data Bus System (https://www.amazon.com/dp/B001XOBU4C?tag=vs-auto-insert-amazon-20)

But looks like I might just need to rewire the accessory power wire: "only thing you need to do is wire a new accessory wire from the radio fuse in the fuse box to the red wire (splice) on the radio you have to do that with all chevy new models something i learned while doing installs"

Anyone have any thoughts?

 

[YukonXL04]

So doing some research around on other sites and looks like my issue might be the Class 2 Data Bus System (https://www.amazon.com/dp/B001XOBU4C?tag=vs-auto-insert-amazon-20)

But looks like I might just need to rewire the accessory power wire: "only thing you need to do is wire a new accessory wire from the radio fuse in the fuse box to the red wire (splice) on the radio you have to do that with all chevy new models something i learned while doing installs"

Anyone have any thoughts?

That's correct. If you have a 03+ and don't want to use the onstar or bose modules, then just run a accessory wire to the fuse box and pic a key on hot to tap into.

That's how I did mine because I enjoy not having all those dang chimes

 

[bluebear15]

That's correct. If you have a 03+ and don't want to use the onstar or bose modules, then just run a accessory wire to the fuse box and pic a key on hot to tap into.

That's how I did mine because I enjoy not having all those dang chimes

Thanks! I was going to install and wire up my speakers and amp this week. Is there anything like this that I should be aware of?

 

[bluebear15]

Well I wired the red accessory "key on" wire to "key on" power. Stereo turned on now... however I'm getting no sound out of my speakers. Is there something different you have to do with Bose and Onstar??

 

[YukonXL04]

Well I wired the red accessory "key on" wire to "key on" power. Stereo turned on now... however I'm getting no sound out of my speakers. Is there something different you have to do with Bose and Onstar??

And this is why vehicle information is needed in the first post.
I'm assuming you have Bose. So yes you need to hook the blue/white remote turn on from the alpine to the Bose amp turn on wire. Don't remember what color it is. Should be pink but search and you'll find it

 

[bluebear15]

And this is why vehicle information is needed in the first post.
I'm assuming you have Bose. So yes you need to hook the blue/white remote turn on from the alpine to the Bose amp turn on wire. Don't remember what color it is. Should be pink but search and you'll find it

Sorry about that but it worked! Only thing is I have that piece that bypasses the foot brake which is tied to the remote wire (blue with white) and im getting some interference throughout my speakers. Any thoughts on rewiring it

 

[bluebear15]

Here's a picture to see

 

[YukonXL04]

Lol so it was pink? Been a while. Not sure on the bypass... I have them on both of my pioneer DDs and don't have any noise issues. But it looks like you have a lot more wires on yours. I think it's usually just remote, ground, and parking brake. What else is on your bypass?

Also you could try hooking either the amp turn on or the bypass up to accessory power instead of remote power. Maybe the ground in the bypass is inducing noise through the amp turn on.

 

[bluebear15]

Lol so it was pink? Been a while. Not sure on the bypass... I have them on both of my pioneer DDs and don't have any noise issues. But it looks like you have a lot more wires on yours. I think it's usually just remote, ground, and parking brake. What else is on your bypass?

Also you could try hooking either the amp turn on or the bypass up to accessory power instead of remote power. Maybe the ground in the bypass is inducing noise through the amp turn on.

Yes it's a pinkish wire on the factory side.

I'll try that. I'm eventually hooking up a Rockford Foosgate 4 channel amp with 4 Alpine Type-R speakers. So eventually won't have to worry about it but just don't have the time right now to put all that in.

Thanks again for all your help! I greatly appreciate it! I was stuck there for a bit

 

[YukonXL04]

Yes it's a pinkish wire on the factory side.

I'll try that. I'm eventually hooking up a Rockford Foosgate 4 channel amp with 4 Alpine Type-R speakers. So eventually won't have to worry about it but just don't have the time right now to put all that in.

Thanks again for all your help! I greatly appreciate it! I was stuck there for a bit

Absolutely. Yea try to rewire it and see what happens.

Make sure when you install your speakers to deaden and seal the doors

 

[bluebear15]

Lol so it was pink? Been a while. Not sure on the bypass... I have them on both of my pioneer DDs and don't have any noise issues. But it looks like you have a lot more wires on yours. I think it's usually just remote, ground, and parking brake. What else is on your bypass?

Also you could try hooking either the amp turn on or the bypass up to accessory power instead of remote power. Maybe the ground in the bypass is inducing noise through the amp turn on.

I rewired it to have the blue/white wire from the relay to be connected to the red accessory power instead of the remote power. It didn't change anything related to the interference. It's like static on the radio but is always there when connected to Bluetooth source or direct connect ipod. Any ideas what could be causing it? Does it have to do anything with the OnStar stuff?

 

[YukonXL04]

Lots of things can cause noise... sometimes ground will do it. Could be the radio itself.

Sometimes the ground for the radio and amp need to be the same spot.

Make sure the that even though you aren't using the rca's, they aren't touching anything.

Being the radio has been used before. You might try to hook it to a spare battery and speaker. See if the noise is still there. If it is then it's the radio. If not then it's something in your vehicle.

I hate chasing down little gremlins like that. But gotta do it, or live with the noise

 

[bluebear15]

Lots of things can cause noise... sometimes ground will do it. Could be the radio itself.

Sometimes the ground for the radio and amp need to be the same spot.

Make sure the that even though you aren't using the rca's, they aren't touching anything.

Being the radio has been used before. You might try to hook it to a spare battery and speaker. See if the noise is still there. If it is then it's the radio. If not then it's something in your vehicle.

I hate chasing down little gremlins like that. But gotta do it, or live with the noise

Thanks! Appreciate the things to check/test.

Ya I hate those kind of electrical problems. That's why I'm a mechanical engineer and not an electrical engineer lol

 

[Jackle1886]

I have the same static crackle. Just did the install today. Scoured the interwebs and have t found a good answer. I'm guessing it's the high output from the internal amp going to the low input on the external bose amp.

Sent from my XT1254 using Tapatalk

 

[bluebear15]

I have the same static crackle. Just did the install today. Scoured the interwebs and have t found a good answer. I'm guessing it's the high output from the internal amp going to the low input on the external bose amp.

Sent from my XT1254 using Tapatalk

Let me know if you find out anything. I'm going to look this week and test. I'll post if I find it

 

[Jackle1886]

Ordered rca to speaker wire adapters. Should be here Friday. Will wire it up that afternoon and report in.

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[Jackle1886]

Cables came in today. Happy to report I've SOLVED the buzz, hiss, static, white noise, whatever you want to call it!

As my guess, it was the signal being double amplified. Once from the head unit and again at the bose amp.

So, simply wire the 8 wires for all four speakers (LF, RF, RR, LR) to 4 rca outputs from the head unit. With positive and negative on each totaling your 8.

Super simple and easy fix!

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