IPhone 4 Car Connection (USA Spec Intergration) And Docking

Question

Hi,
I'm likely going to be getting the new iPhone 4 when it rolls out on Verizon. First off, please don't tell me how big of a mistake I'm making and alike. AT&T is terrible in my area, and most of the people I talk to (work or friends) have Verizon. If I hear anything about a future iPhone for LTE, then I may rethink, but as it sits, I'll be getting one in February. Data use during a call isn’t a major issue for me, nor is FaceTime… but I do have Wi-Fi connections at home and at work, if need be.
Currently, I have a first generation iPod Touch (16GB, with the current OS that I really cannot remember off the top of my head) which I use in my 2002 Impala with a USA-Spec interface. It is a 3G version, which I've had ever since it came out. Anyways, I saw that they have an iPhone 4 version, so I will likely have to swap the box out when I move to it... which is easy due to where I mount it. All the wires are ran, so it is just unplug and swap.
My question is if anyone has that setup with their iPhone 4, and if so, how does it work in your car? My main thing is music, since I mainly use my iPod strictly as a music library for my car. With the iPhone, I’m hoping to eliminate carrying a phone, as well. From how I read it on USA-Spec’s website, the music will mute and you will hear a ring through the speakers… when you answer, the speakers cut and you use it just like a regular phone. I’m sure that this is a small group of people, but if someone does have this setup, would a Bluetooth headset work? I’m actually emailing USA-Spec about this, but wanted input if there are actual users.
I also have a HMDX dock that I use sometimes to listen to my iPod when doing reports or whatever else for work. I kind of remember it being compatible for the iPhone, but not completely sure on that. Anyways, it just charges and plays music over a speaker… so it should work with the iPhone 4 with the correct adaptor, correct? If I can get away with it, I’d like to use it for charging when I’m at work… then get another one for home.
Thanks,
-John

Answer 1

@SH.
I am sorry you are having this problem. Sure it's convenience, but it is very helpful. I, too, had this problem at first in my car...worked perfectly with 3G, but same problems with 4. Then, when I did get a connection, the audio was terrible. Before, people could hardly tell I was using the car bluetooth..now they ask me to go back to the handset.
Every car system is different and I understand that but what I had to do and what worked was that I got my old 3G phone back in and then with it in the car, I disconnected the device within the iPhone 3G, then in the car system, I had it 'remove paired phone'.
Then, I synched my 4phone from back up and then paired the phone by making the 4 discoverable and having the car system find it...
And all has been well since then.
I hope that works. I would also try calling your car manufacturer and see if there needs to be an update..I had to update my system when I got the 3G...
Otherwise, you may indeed have a defective phone.
Good luck.