Radio heads
its a kenwood head unit with all the modules needed to keep stock speakers, and add an amplifier if you wanted to. I am running new rockford speakers that i swapped out the rears and 3" but i left the 8" bose in there. Louder than stock by far, rear speakers are loud on their own now, clean crisp highs/mids I dont believe in lots of bass from door speakers it just causes distortion and blown speakers but if you wanted a sub you could add one. 6.5 or 8" is all i would opt for. (Ive had 25,000+ watt systems in my previous cars)
- Replace just the headunit, leaving the rest of the system intact using
- (this one preserves the RAP feature)
- Keep the headunit, but replace everything else adding a multichannel external amp driving new speakers through new wires by using
- Replace just the 4 twiddlers with 2-way coaxial speakers leaving the rest of the system intact
- Combine 1 and 3
- Take everything out and replace all from scratch
That being said, without a doubt, the easiest and least expensive way to upgrade the system with the more bang for your buck is new speakers that can be bolted on in place of the factory ones, keeping the rest of the system intact.
The C5 OEM speakers do not include any real tweeter. Bose used 4 plain-cone (paper) speakers to handle high and mid frequencies and called them "twiddlers". That's why you can make a big improvement by replacing them with a 2-way coaxial design.
OEM C5 Speaker Sizes:
-Front
Twiddler: 3.5"
Subwoofer: 8"
-Rear Twiddler
Coupe: 6.5"
FRC/Z06/Convertible: 5.25"
Get 3.5" 2-way coaxial speakers to replace the doors' twiddlers and 2-way coaxials of the right size for the rear. Don't touch the OEM subwoofers.
A quick search produced this:
JL Audio Evolution™ C2 Series 2-way car speakers:
- C2-350X (3-1/2")
- C2-525X (5-1/4")
- C2-650X (6-1/2")
Not only they are from the same manufacturer, but they all belong to the same line. This should reasonably assure you they have the same timbre.
You are going to need as well. One kit will do both rears.
Independent confirmation that upgrading the 4 twiddlers makes a noticeable and worthwhile upgrade.
Last edited by GCG; Sep 7, 2018 at 12:03 PM.
The Best of Corvette for Corvette Enthusiasts
A Double-DIN is very nice, but if budget doesn't allow it and you want to consider a Single-DIN, then you would need an adapter plate to secure the new unit in place and provide a nice finish.
Here is an adapter plate that matches the interior very well. It has the word "Corvette" engraved in it that can be set up with backlighting (or you can customize the lettering).
From their website:
The lettering can be above or below the head unit opening, there is also a non illuminated version with the head unit located in the center of the mount.
The main lettering illumination available in red, blue, green, yellow, white LED’s and also red mini lamp illumination.
Custom lettering and design is available.
For a Double-DIN headunit you will need a Double-DIN bezel. Vettenuts offers one that is topnotch, but not inexpensive. There's a less expensive option, although not at the same quality level, from Metra. You may want to compare them before making a decision.
Regarding the headunit replacement, check the post above.
Last edited by GCG; Sep 7, 2018 at 12:15 PM.





A Double-DIN is very nice, but if budget doesn't allow it and you want to consider a Single-DIN, then you would need an adapter plate to secure the new unit in place and provide a nice finish.
Here is an adapter plate that matches the interior very well. It has the word "Corvette" engraved in it that can be set up with backlighting (or you can customize the lettering).
From their website:
For a Double-DIN headunit you will need a Double-DIN bezel. Vettenuts offers one that is topnotch, but not inexpensive. There's a less expensive option, although not at the same quality level, from Metra. You may want to compare them before making a decision.
Regarding the headunit replacement, check the post above.
Vettenuts panel almost finished, looks like stock the panel and very good fit, 7” had to cut a little bit in it to clear the ooeration of door to stereo, HU is Kenwood touchscreen mirror link backkamera and so on
Gladen 3 way system with active filter, Metras speaker plate, door is insulated also behind the speakers.
Last edited by MatsA; Sep 7, 2018 at 01:41 PM.
modules are dependent on ur future goal, if youd like to replace head unit, reuse stock door amplifiers without problems, and add an amp im the rear, or if you just want to swap a new full system in on an amp. It depends what you are trying to really accomplish. Mine is set up so i can add an amp/sub and keep the bose amplifiers on the doors, (if you want to run new door speakers off a new amp i recommend rerunning new wires from front to rear for speaker wire, do not use stock wiring) at which point all youd need is any deck with rcas and new wire, modules wouldnt be necessary to retain anything.








