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Best swc adapter for c6

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Old Feb 6, 2020 | 02:54 PM
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Default Best swc adapter for c6

Going to install a jvc kw75 by. 2012 Gs w/ Bose. Keeping Bose amp.
What is the best adapter to maintain swc controls for the phone and audio?
Want to be able to maintain fader control.
Was looking at the pac rp4-11gm. Not interested in maintaining onstar, but, it
says can’t control fader.
Also looking at Access unit.
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Old Feb 6, 2020 | 03:20 PM
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PAC RP5-GM11... no trouble with fader when I did my 13 GS.

https://www.crutchfield.com/S-WgMYDv...Interface.html
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Old Feb 8, 2020 | 09:49 AM
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Originally Posted by jaki30
Going to install a jvc kw75 by. 2012 Gs w/ Bose. Keeping Bose amp.
What is the best adapter to maintain swc controls for the phone and audio?
Want to be able to maintain fader control.
Was looking at the pac rp4-11gm. Not interested in maintaining onstar, but, it
says can’t control fader.

Also looking at Access unit.
I'm pretty sure you can still control the fade through the head unit once connected. Maybe someone who has the RP4 can confirm. The only issue with the RP5 is getting the phone "answer" and "end" buttons programmed correctly. I heard those with the RP4 didn't have this problem.
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Old Mar 11, 2020 | 01:57 PM
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If you don't have steering wheel controls, XM or NAV and don't care about the chimes, do you even need one of these adapters? It says in the description that it also enables you to use the factory amp, can you really not use the factory amp without one of these adapters? Thanks.
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Old Mar 11, 2020 | 02:34 PM
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Originally Posted by inultus
If you don't have steering wheel controls, XM or NAV and don't care about the chimes, do you even need one of these adapters? It says in the description that it also enables you to use the factory amp, can you really not use the factory amp without one of these adapters? Thanks.
The wiring interface, such as the ones from Pac Audio and a few other companies, makes your new head unit plug and play with the wring harness on your car. Also it makes it possible to send a pre-amp signal to a car's factory amp. If price is an issue, look at one of the cheaper alternatives like the Crux SOCGM-17C.

Amazon Amazon

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Old Mar 28, 2020 | 05:03 PM
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Originally Posted by TorchRedFred
The wiring interface, such as the ones from Pac Audio and a few other companies, makes your new head unit plug and play with the wring harness on your car. Also it makes it possible to send a pre-amp signal to a car's factory amp. If price is an issue, look at one of the cheaper alternatives like the Crux SOCGM-17C.

https://www.amazon.com/Crux-SOCGM-17...s%2C142&sr=8-1
I'm replacing a Kenwood HU with another Kenwood. I already had the PAC 5-GM11 installed but did not use the RCA plugs in the OEM wiring harness because I did not know if it would OK to bypass the PAC speaker wires. Sure would be easier to just plug RCA wires from the head unit to the OEM plugs. Can that be done when reusing the BOSE amp?
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Old Mar 28, 2020 | 07:02 PM
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Originally Posted by hydrasport
I'm replacing a Kenwood HU with another Kenwood. I already had the PAC 5-GM11 installed but did not use the RCA plugs in the OEM wiring harness because I did not know if it would OK to bypass the PAC speaker wires. Sure would be easier to just plug RCA wires from the head unit to the OEM plugs. Can that be done when reusing the BOSE amp?
I believe if you use the RCA cables, you will lose the fade function of your head unit. The RP5 only has one set of RCA cables. For the Fader function to work, you would need separate RCA's for front and rear.
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Old Mar 30, 2020 | 10:49 AM
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Originally Posted by TorchRedFred
The wiring interface, such as the ones from Pac Audio and a few other companies, makes your new head unit plug and play with the wring harness on your car. Also it makes it possible to send a pre-amp signal to a car's factory amp. If price is an issue, look at one of the cheaper alternatives like the Crux SOCGM-17C.

https://www.amazon.com/Crux-SOCGM-17...s%2C142&sr=8-1
Strange the fit guide on this only shows 2006-2013 Corvette. Any reason why they would leave off a 2005 C6 (which is my model year)?
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Old Mar 30, 2020 | 10:58 AM
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Originally Posted by richmadeknives
Strange the fit guide on this only shows 2006-2013 Corvette. Any reason why they would leave off a 2005 C6 (which is my model year)?
It says it fits from 2000 to 2013 GM vehicles, where are you seeing otherwise ?
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Old Mar 30, 2020 | 11:01 AM
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I saw below on Amazon. Looks like conflicting info, I was able to view the PDF install manual and it does show 2005-2013. Poor info on Amazon and a few other places.


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Old Mar 30, 2020 | 11:13 AM
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Interesting, Crutchfield says it fits.



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Old Mar 30, 2020 | 11:15 AM
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Here is the adapter I used. Its the update to the model listed above:

https://catalog.pac-audio.com/catalo...faces/gm1a-rst

It worked great. Easy to install.
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Old Mar 30, 2020 | 11:44 AM
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Originally Posted by chandretti15
Here is the adapter I used. Its the update to the model listed above:

https://catalog.pac-audio.com/catalo...faces/gm1a-rst

It worked great. Easy to install.
Hey, I remember you from my thread concerning this interface https://www.corvetteforum.com/forums...terface-3.html Mine's still working great, sounds like yours is to. Did you ever get the 1-6 buttons to control anything on your Alpine ?
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Old Mar 30, 2020 | 04:32 PM
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Default Is the SWC worth it??

I very rarely use the Audio steering wheel control buttons on my 2012.
As an old guy, I can reach over and tap the radio controls I need to do what I want.
The only steering wheels I do use are the phone buttons to answer and end a call. I am assuming I lose the
ability to use the voice activation button on the Phone controls for the factory radio.
That said, I am beginning to doubt the need for the SWC adapters like the Pac GM5.

I am not interested in maintaining Onstar. Nor am I concerned about having to glance at the H/U to operate it.
Not worried about the chimes either.

Am I missing something?
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Old Mar 30, 2020 | 05:24 PM
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Originally Posted by jaki30
I very rarely use the Audio steering wheel control buttons on my 2012.
As an old guy, I can reach over and tap the radio controls I need to do what I want.
The only steering wheels I do use are the phone buttons to answer and end a call. I am assuming I lose the
ability to use the voice activation button on the Phone controls for the factory radio.
That said, I am beginning to doubt the need for the SWC adapters like the Pac GM5.

I am not interested in maintaining Onstar. Nor am I concerned about having to glance at the H/U to operate it.
Not worried about the chimes either.

Am I missing something?
Yes. You have to use one of those PAC adapters to tie the new radio into the car. It’s all part of the CAN bus system and you can’t tie the radio into the car without them. Its all part of the electronic systems that’s built into the car.

Also, it’s much safer to use the steering wheel controls rather than reach over to the head unit. Especially on a touch screen. That way you keep your eyes on the road and hands on the wheel.

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Old Mar 31, 2020 | 01:33 AM
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Originally Posted by chandretti15
Yes. You have to use one of those PAC adapters to tie the new radio into the car. It’s all part of the CAN bus system and you can’t tie the radio into the car without them. Its all part of the electronic systems that’s built into the car.

Also, it’s much safer to use the steering wheel controls rather than reach over to the head unit. Especially on a touch screen. That way you keep your eyes on the road and hands on the wheel.

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Old Mar 31, 2020 | 11:32 AM
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Originally Posted by jaki30
I very rarely use the Audio steering wheel control buttons on my 2012.
As an old guy, I can reach over and tap the radio controls I need to do what I want.
The only steering wheels I do use are the phone buttons to answer and end a call. I am assuming I lose the
ability to use the voice activation button on the Phone controls for the factory radio.
That said, I am beginning to doubt the need for the SWC adapters like the Pac GM5.

I am not interested in maintaining Onstar. Nor am I concerned about having to glance at the H/U to operate it.
Not worried about the chimes either.

Am I missing something?
So yes, like chandretti15 stated, you have to use an interface to connect up a new head unit with the cars electronics, these newer cars aren't like to old days where you just splice into a few wires, it's a bit more complex than that with the Data Bus systems.

You state that you rarely use the steering wheel controls, but you use them non the less, including the phone buttons, so why not get an interface that allows this option ? In mine I have a Pioneer head unit and the GM1A-RST interface, and I did the steering wheel swap on my 05 to add the steering wheel controls which, on mine, also included the phone buttons on the left side of the steering wheel. Initially I couldn't get the buttons programmed to answer the phone, they would just activate OnStar when they were pushed, then I came across this note in the instructions. "*Voice default is OnStar. If OnStar retention is not necessary, unplug the OnStar module to default to Voice " So I pulled the fuse for the OnStar, and this allowed be to program the phone buttons to work with the phone. Losing the OnStar certainly wasn't an issue with me since it's no longer supported on cars 2006 and older anyway. So there you go, you are able to retain the functionally of the phone buttons.




Last edited by madsonp; Mar 31, 2020 at 11:34 AM. Reason: spelling
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Old Mar 31, 2020 | 12:18 PM
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Originally Posted by madsonp
Hey, I remember you from my thread concerning this interface https://www.corvetteforum.com/forums...terface-3.html Mine's still working great, sounds like yours is to. Did you ever get the 1-6 buttons to control anything on your Alpine ?
I never bothered with the 1-6 button. I didn't want to take everything apart to get to the interface unit. My car is used more as a HPDE track car and I've been working on track prep stuff for it.
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Old Mar 31, 2020 | 12:26 PM
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Originally Posted by chandretti15
I never bothered with the 1-6 button. I didn't want to take everything apart to get to the interface unit. My car is used more as a HPDE track car and I've been working on track prep stuff for it.
Oh, ok, I was just curious.
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