Speaker replacement
Racer
Joined: Apr 2008
Posts: 275
Likes: 5
From: Circle Pines MN
The PAC Audio ROEM-VET1 and Axxess XSVI-2004 adapters are needed when replacing just the head unit leaving the rest of the system intact.
You can take this a step further by upgrading the 2 front and 2 rear twiddlers with 2-way coaxial speakers that can be just bolted-on in place of the OEM ones.
I don't know if this answers your question, but more details are here.
You can take this a step further by upgrading the 2 front and 2 rear twiddlers with 2-way coaxial speakers that can be just bolted-on in place of the OEM ones.
I don't know if this answers your question, but more details are here.
If I replace the HU with aftermarket unit and these adapter that you listed PAC Audio ROEM-VET1 and Axxess XSVI-2004
Replace twiddlers of my choice front and rear ( thinking JBL GX 302 and GX 602) I have a coupe.
My Bose door subs will still work? is that correct or am I missing something?
Thanks in advance
Team Owner
Joined: Jul 2016
Posts: 25,303
Likes: 1,683
From: The Steel City, Colorful Colorado
Winner 2020 C7 of the Year - Modified
I guessing these question are getting a little old, but I am going to confirm what I think is correct.
If I replace the HU with aftermarket unit and these adapter that you listed PAC Audio ROEM-VET1 and Axxess XSVI-2004
Replace twiddlers of my choice front and rear ( thinking JBL GX 302 and GX 602) I have a coupe.
My Bose door subs will still work? is that correct or am I missing something?
Thanks in advance
If I replace the HU with aftermarket unit and these adapter that you listed PAC Audio ROEM-VET1 and Axxess XSVI-2004
Replace twiddlers of my choice front and rear ( thinking JBL GX 302 and GX 602) I have a coupe.
My Bose door subs will still work? is that correct or am I missing something?
Thanks in advance
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
I guessing these question are getting a little old, but I am going to confirm what I think is correct.
If I replace the HU with aftermarket unit and these adapter that you listed PAC Audio ROEM-VET1 and Axxess XSVI-2004
Replace twiddlers of my choice front and rear ( thinking JBL GX 302 and GX 602) I have a coupe.
My Bose door subs will still work? is that correct or am I missing something?
Thanks in advance
If I replace the HU with aftermarket unit and these adapter that you listed PAC Audio ROEM-VET1 and Axxess XSVI-2004
Replace twiddlers of my choice front and rear ( thinking JBL GX 302 and GX 602) I have a coupe.
My Bose door subs will still work? is that correct or am I missing something?
Thanks in advance
Last edited by GCG; Jan 29, 2019 at 07:30 PM.
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Team Owner
Joined: Jul 2016
Posts: 25,303
Likes: 1,683
From: The Steel City, Colorful Colorado
Winner 2020 C7 of the Year - Modified
Burning Brakes
Joined: Aug 2018
Posts: 1,043
Likes: 329
Upgraded all 4 speakers with Infinity recently with good results. While the major car stereo website said the fronts would not fit, they did. Backs are drop in with harnesses as others have shown. Total cost was around $100. You could buy better but in this car, not necessary IMO. Save high end for your quiet sedan.
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
As AE Guy mentioned above, either one will perform well and the Axxess will preserve the Retained Accessory Power (RAP) feature.
Let me just add that since the interfaces with the Serial Data Bus, in addition to preserving the RAP feature, it does not need an external "Accessory" switched power connection.
Because the doesn't interface with the Serial Data Bus, it doesn't preserve RAP and requires the extra switched connection. The headunit's OEM harness lacks this connection, but it can be easily brought from an unused harness (except '04) in the passenger's footwell that has 3 wires (yellow: switched via Fuse 11, orange: always hot via Fuse 7 and black: ground).
Let me just add that since the interfaces with the Serial Data Bus, in addition to preserving the RAP feature, it does not need an external "Accessory" switched power connection.
Because the doesn't interface with the Serial Data Bus, it doesn't preserve RAP and requires the extra switched connection. The headunit's OEM harness lacks this connection, but it can be easily brought from an unused harness (except '04) in the passenger's footwell that has 3 wires (yellow: switched via Fuse 11, orange: always hot via Fuse 7 and black: ground).
Last edited by GCG; Jan 31, 2019 at 01:43 PM.
Instructor
Joined: Aug 2014
Posts: 165
Likes: 4
From: Putnam, NY
Just to add one more layer to this (sorry all), since I'm considering the same thing:
From what I understand the Retrosound Newport 1.5 DIN Head Unit does not need an adapter to work with the stock setup. I like the semi-OEM look of the thing, and I really only want the connectivity options (USB, AUX, Bluetooth) and improved sound. To upgrade to the Newport and better speakers I would only need the head unit and front and rear twiddlers (also probably JBL GX 302 and GX 602)?
From what I understand the Retrosound Newport 1.5 DIN Head Unit does not need an adapter to work with the stock setup. I like the semi-OEM look of the thing, and I really only want the connectivity options (USB, AUX, Bluetooth) and improved sound. To upgrade to the Newport and better speakers I would only need the head unit and front and rear twiddlers (also probably JBL GX 302 and GX 602)?
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Note: If your vehicle came equipped with a Delco/Bose audio system, an adapter may be needed to use the Newport with your amplified factory speakers.
Last edited by GCG; Feb 1, 2019 at 01:13 PM.
Instructor
Joined: Aug 2014
Posts: 165
Likes: 4
From: Putnam, NY
You may want to double-check that... From their website:
This interface is needed because the C5 Bose system doesn't use standard signals. This system is based on a modified Delco head-unit, a Bose DSP box and subwoofer amps that use pseudo-differential low level signals along with fully differential speaker level signals. The common signals are not standard and have a DC offset, so they cannot be grounded.
This interface is needed because the C5 Bose system doesn't use standard signals. This system is based on a modified Delco head-unit, a Bose DSP box and subwoofer amps that use pseudo-differential low level signals along with fully differential speaker level signals. The common signals are not standard and have a DC offset, so they cannot be grounded.
Damn you Crutchfield! Thanks for the info, GCG, will adjust my plans accordingly.
Instructor
Joined: Sep 2016
Posts: 139
Likes: 14
From: Almost Canada
Upgraded all 4 speakers with Infinity recently with good results. While the major car stereo website said the fronts would not fit, they did. Backs are drop in with harnesses as others have shown. Total cost was around $100. You could buy better but in this car, not necessary IMO. Save high end for your quiet sedan.
I
Last edited by WoodyJohnson; Feb 1, 2019 at 02:29 PM.
Melting Slicks
Joined: Jul 2015
Posts: 2,290
Likes: 231
From: Round Rock Texas
Just to add one more layer to this (sorry all), since I'm considering the same thing:
From what I understand the Retrosound Newport 1.5 DIN Head Unit does not need an adapter to work with the stock setup. I like the semi-OEM look of the thing, and I really only want the connectivity options (USB, AUX, Bluetooth) and improved sound. To upgrade to the Newport and better speakers I would only need the head unit and front and rear twiddlers (also probably JBL GX 302 and GX 602)?
From what I understand the Retrosound Newport 1.5 DIN Head Unit does not need an adapter to work with the stock setup. I like the semi-OEM look of the thing, and I really only want the connectivity options (USB, AUX, Bluetooth) and improved sound. To upgrade to the Newport and better speakers I would only need the head unit and front and rear twiddlers (also probably JBL GX 302 and GX 602)?
Racer
Joined: Apr 2008
Posts: 275
Likes: 5
From: Circle Pines MN
Upgraded all 4 speakers with Infinity recently with good results. While the major car stereo website said the fronts would not fit, they did. Backs are drop in with harnesses as others have shown. Total cost was around $100. You could buy better but in this car, not necessary IMO. Save high end for your quiet sedan.
Instructor
Joined: Aug 2014
Posts: 165
Likes: 4
From: Putnam, NY
I know it’s pricey but my thinking was based on the info it was just plug and play, so wasn’t so bad if it sss the only piece I needed. I just don’t love the spacer needed for single DIN and the double DIN conversion is even more expensive. I kinda like the OEM look of the unit, but yeah, $400.
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
I know it’s pricey but my thinking was based on the info it was just plug and play, so wasn’t so bad if it sss the only piece I needed. I just don’t love the spacer needed for single DIN and the double DIN conversion is even more expensive. I kinda like the OEM look of the unit, but yeah, $400.
You can do this via DIY for just $3 (actually the jack is on sale now for $1.25 here) following this step-by-step write-up, or by sending the OEM headunit to one of the available vendors that provide this service.
