1978 Rear speaker harness
Thread Starter
5th Gear
Joined: May 2022
Posts: 5
Likes: 0
From: Palm Springs, Tarpon Springs, Detroit
1978 Rear speaker harness
Does anyone know of a source for the rear speaker harness? I’m looking for the one that goes from the rear speakers to the C127 connector that is under the LH side of the dash, 4 wires. I’m trying to clean up some of the audio wiring mess that the previous owners “mechanic” left behind.
Thanks
Greg
Thanks
Greg
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
I'm tackling same problem and go the harness from Lectric Limited.
https://www.lectriclimited.com/vehic...ke/21/model/65
https://www.lectriclimited.com/vehic...ke/21/model/65
Safety Car
Joined: Oct 2007
Posts: 4,384
Likes: 1,759
From: Seattle Area Washington
I believe the Lectric/Limited harness #VRR7800RS is only from radio to front speakers, & has the pigtail connector for the rear speaker harness not available.
The 2 PACK-CON II connector housings at C127 are:
Male: Delphi/Packard #8917541
F/M: Delphi/Packard #8917542
Unfortunately the F/M connector #8917542 is not available.
If I can make a suggestion, why not change from a PACK-CON II style to a 4 wire series 56 terminals & housings?
The link below of the terminals and connector housings are still the locking style and would be period correct.
E-BAY LINK:https://www.ebay.com/itm/28360422352...Bk9SR6TSyaXmYQ
Then build your own rear harness to speakers with either GXL or SXL automotive wire.
SXL and GXL automotive wire is rated the same but the SXL is standard wall thickness vs GXL wall thickness is smaller in diameter for hard to fit areas.
The connector housings at speakers are also not available.
The 2 PACK-CON II connector housings at C127 are:
Male: Delphi/Packard #8917541
F/M: Delphi/Packard #8917542
Unfortunately the F/M connector #8917542 is not available.
If I can make a suggestion, why not change from a PACK-CON II style to a 4 wire series 56 terminals & housings?
The link below of the terminals and connector housings are still the locking style and would be period correct.
E-BAY LINK:https://www.ebay.com/itm/28360422352...Bk9SR6TSyaXmYQ
Then build your own rear harness to speakers with either GXL or SXL automotive wire.
SXL and GXL automotive wire is rated the same but the SXL is standard wall thickness vs GXL wall thickness is smaller in diameter for hard to fit areas.
The connector housings at speakers are also not available.
Thread Starter
5th Gear
Joined: May 2022
Posts: 5
Likes: 0
From: Palm Springs, Tarpon Springs, Detroit
Thread Starter
5th Gear
Joined: May 2022
Posts: 5
Likes: 0
From: Palm Springs, Tarpon Springs, Detroit
I believe the Lectric/Limited harness #VRR7800RS is only from radio to front speakers, & has the pigtail connector for the rear speaker harness not available.
The 2 PACK-CON II connector housings at C127 are:
Male: Delphi/Packard #8917541
F/M: Delphi/Packard #8917542
Unfortunately the F/M connector #8917542 is not available.
If I can make a suggestion, why not change from a PACK-CON II style to a 4 wire series 56 terminals & housings?
The link below of the terminals and connector housings are still the locking style and would be period correct.
E-BAY LINK:https://www.ebay.com/itm/28360422352...Bk9SR6TSyaXmYQ
Then build your own rear harness to speakers with either GXL or SXL automotive wire.
SXL and GXL automotive wire is rated the same but the SXL is standard wall thickness vs GXL wall thickness is smaller in diameter for hard to fit areas.
The connector housings at speakers are also not available.
The 2 PACK-CON II connector housings at C127 are:
Male: Delphi/Packard #8917541
F/M: Delphi/Packard #8917542
Unfortunately the F/M connector #8917542 is not available.
If I can make a suggestion, why not change from a PACK-CON II style to a 4 wire series 56 terminals & housings?
The link below of the terminals and connector housings are still the locking style and would be period correct.
E-BAY LINK:https://www.ebay.com/itm/28360422352...Bk9SR6TSyaXmYQ
Then build your own rear harness to speakers with either GXL or SXL automotive wire.
SXL and GXL automotive wire is rated the same but the SXL is standard wall thickness vs GXL wall thickness is smaller in diameter for hard to fit areas.
The connector housings at speakers are also not available.
Safety Car
Joined: Oct 2007
Posts: 4,384
Likes: 1,759
From: Seattle Area Washington
Using a 1979 radio harness with rear speakers eliminates C127 and the extension harness completely.
It is a substitute harness...make sense...
So all radio speakers front & rear are connected directly from a single harness vs 2 separate harness that the 1978 diagram calls out for.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
Ok, I see what the difference is...
Using a 1979 radio harness with rear speakers eliminates C127 and the extension harness completely.
It is a substitute harness...make sense...
So all radio speakers front & rear are connected directly from a single harness vs 2 separate harnesses that the 1978 diagram calls out for.
Using a 1979 radio harness with rear speakers eliminates C127 and the extension harness completely.
It is a substitute harness...make sense...
So all radio speakers front & rear are connected directly from a single harness vs 2 separate harnesses that the 1978 diagram calls out for.