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To be clear, the immediate goal is to upgrade the 2012's aged telematics—what makes this otherwise magnificent vehicle (we're big fans of Louis) feel dated. The most desired feature is the CarPlay the lady has gotten used to in her foul-weather driver and CD playback is still required. Integration with steering wheel controls and car warning sounds is also desired and I feel like I might as well add a backup camera while I'm at it. XM/Sirius is no longer relevant.
I have a 2012 GS, and the stock navigation unit seemed extremely dated even by 2012 standards. Upgrading the head unit is a must do mod in my opinion and brings your C6 into the modern era. As far as keeping the steering wheel controls and warning chimes, it's just a matter of using the correct wiring harness. If you don't have or care for OnStar, I recommend the Pac Audio RP4-GM11. If OnStar is important to you, then the RP5-GM11.
Don't forget, people perceive and hear music differently. What might sound good to one person sounds tinny or harsh to another. The way you adjust your bass/subs to your liking may not be to someone else's liking, etc... My point is, if you can listen to something before buying it would be helpful, but there is a general consensus that Alpine and Kenwood models sound good. A lot of guys like the Pioneer also, but man they don't sound right to me. There are different levels of ability in terms of hearing, too, just like athletic ability which causes a varied opinion on what sounds best. You may end up like me and have to go through a few head units to find the one you like best. It will not be as prevalent if you are going to use the existing factory system but if you upgrade with high end amps, speakers, processor, and subs, it will make a huge difference! Good luck!
Last edited by 02BlownZ06; Mar 4, 2019 at 03:44 PM.
I have Kenwood head units in my C4, Silverado, and Road King. Sound quality, features, price for reasons.
I have been using DS18 speakers and amps with great results in my Hummer and C4.
Pioneer is fine as well, have used their products for years, Alpine has always been overpriced IMO. (As good as Kenwood, maybe better, but not enough to justify the cost.)
The aftermarket amp and speakers have been in the car since I purchased the car new in 2011 ... The Kenwood head unit is going to replace the OEM head unit in about a week.
I have always preferred Alpine and Kenwood. I have never been a huge fan of pioneer, I have had issues with them and I can never seem to get the sound I am looking for out of them. Latest example my C4 has a Pioneer in it now (previous owner installed) and the bluetooth music cuts out (I've used 2 different phones with it, same result) and when running an amplifier it hisses on quiet parts of a song (quick google search revealed this as common on some pioneer head units). I have never had these issues in any of the Alpines or Kenwoods I have run, and I am always able to get them dialed in much easier to sound how I want them to sound. In the end its all personal preference, go with what you like.
I was pretty sold on a Kenwood DDX9905 or the Kenwood DNX575s then I got a chance to listen to a Alpine ILX-107, pretty impressive with the 7” Capacitive Screen and Wireless Apple Car Play! Tough decisions
I’ve gone Pioneer in all of my cars lately. Vast improvement over the stock radio and has Apple Car Play. No reason in today’s world to ever need a radio with Navigation. Apple Maps is awesome. Pioneer’s price point is lower than Kenwood and Alpine.
Heh... you ever been to my neck of the woods - BFE, South Carolina? I lose cell signal on the regular... even sitting on my couch at home. It still happens.
I've had both Alpine and Kenwood. It's tough to hear the difference in sound quality but I seemed happier with the Kenwood. Although I couldn't tell you why. It also depends on what features you want. Pioneer is very good also. Jensen is a noticeable but slight drop off in sound quality but still a good sounding stereo (and still significantly outperforms the factory head unit), especially for the money, a great budget stereo. The Jensen is probably the best "bang for the buck" stereo.
Last edited by htown81vette; May 30, 2019 at 12:11 PM.
I've been into car audio for 30+ years, and have owned HUs by Alpine, JVC, Kenwood, Pioneer, Sony, Clarion, etc. From cassette decks to cd changers, to Carplay/ Android Auto. Pretty much everything. I don't think anyone can say with any degree of certainty which company's HU sound the best. There are more differences within each brand's models (high vs low end) than differences between brands. Find one with the right combination of features, looks ,and price, and I think you'll be happy. Just stay away from budget brands though.