Reception depends on how far you are from the radio transmitter tower. A very large metropolitan area may cause the FM signal to be too weak in some parts of that area.

Do you know where the transmitter towers are located?

 

I don't have the truck anymore so its immaterial (for me anyway)

 

Well I guess that sums up your desire to learn about the technology along with its reception characteristics.

 

I'm really disappointed about the HD Radio issue too (or lack thereof).

Last year when I picked-up my 2015 C7 at the dealer, I was fully expecting it to have HD Radio just like the 2014 model I test drove. Guess what?

I recently rented a Tahoe with HD Radio and it sounded awesome, no dropouts whatsoever, it was seamless.

Anyways, I've been doing some research into converting my current FM radio to HD. Here's what I know so far:

- The 2015 C7 XM/FM/AM Receiver module is located behind the carpet at the end of the passenger side footwell, behind the Body Control Module. It is assumed that the 2014 C7 XM/HD FM Receiver is located in the same position, although this is irrelevant.

- The 2015 C7 XM/FM/AM Receiver, GM part # is: 13598662
- The 2014 C7 XM/FM/Am Receiver with HD Radio, GM part # is: 13592804

- The asking price of a used HD Receiver module (13592804) on ebay is approx. $100 (from a crashed 2014 Silverado).

- The notes on the HD Receiver module's Ad on ebay suggests that it will have to be re-programmed with the new vehicle's VIN before it will work. Of this, I'm not entirely sure.

Now the questions that remain are:

- Will a dealer be willing to re-program a used receiver module?
- How much will it cost?
- Will the receiver module swap actually work, or does the HMI module also require re-programming with the HD GUI functions?

Anyone, please feel free to chime in.......

 

Does any other '14 c7 owner in DFW have reception problems w/HD radio? Mine fades in/out,'searching for a signal',etc,.have rented a new toyota w/HD-no problems-love it when it works,but jeesh it's annoying..

 

BINGO. My 14 does the same. My 16 dodge challenger has HD and while it does occasionally lose the signal as well, it is like 1 to 10 to my vette. The challenger loses some audio quality when it happens, the vette is just awful when it does it. the highs go, the lows go and it sounds muddled until you get the signal back. The dodge is still decent when it happens, which is not very often.

I expect they dropped it in the vette until they could figure out a way to get better reception. They hide the antenna behind the rear bumper fascia. About 6 or 7 inches above the exhaust and right behind the tail lights and too close to the magnet if you happen to have the factory 8 inch sub. Not a great place. Most of the other cars that have it are either an external mounted antenna or it is in the windshield. Bad design. I am interested to know how they fixed it on the 2017 model and of it can be retrofitted on the 14.

 

You want HD radio? You can get it and a update to support AA/Carplay and everything else will work.

https://www.corvetteforum.com/forums...post1598805684

 

I have HD radio in my 14. Don't need AA/Carplay for the price, Can stream it from my phone for free. What i would like is better reception from my radio. I was asking if anyone here found a way to get it. Do not waste your time upgrading your 15,16,17 with HD radio unless you also find a way to get better reception with it. The problem is where they located the antenna's. Fix that before you spend money on upgrading the factory radio. GM dropped HD from the 15,16,17 models because of so many complaints about reception in the 14s. Apparently, hopefully, they fixed it with the 18s. Does anyone know how? And can it be retrofitted? thanks.

BTW, before you spend over 1k for a couple of apps on your factory radio, i would seriously look at an aftermarket solution. Can get a whole lot more for a whole lot less and still have enough money left to upgrade the speakers if you want. I spent 600 for a pioneer double din touch screen unit for my wife's car that has everything, including the ability to download and use android apps with built in wifi, for free, and enough video inputs to put cameras anywhere you like. Just my opinion. Your money though.