Great product fast delivery will not hesitate to order again more products from SONIC.

The instructions are straight forward, easy to understand. I wanted to keep my steering wheel controls as factory as possible, mission completed! Unless I missed something, when you program it while the vehicle is running, that is how it will remember the programming. While the vehicle is off and in the "time out mode", the controls do not work the same as when the vehicle is running. Using the controls during the "time out mode" seems to erase the memory some how. Like I said, I may have missed something, but that seems to be the only flaw the unit has. Other than that, I am very pleased and would recommend this item.

Very easy installation and works great. The communication and shipping to Germany were just perfect. Thank you.

Easy installation and easy handling, recommended 100% compatibility with the functions of the steering wheel.

This product worked as advertised. I would recommend it to anyone who wants to keep their OnStar.

This product is wonderful. It works just the same as my factory steering wheel controls. Great price and very fast shipping. Will recommend to others and will use again.

With Sonic reps i got the right parts.
PAC is a great name and with Sonic you get a great price

Setup is a little tricky. You must follow the instructions. A little geeky, but it has worked trouble free for the 6 months.

I have had this in my car for about 6-7 months or so. I would say that it works pretty good. Though it was a chore figuring out how to program and install. It also doesn't react very quick to button taps on my steering wheel. I have to hold the button down versus simply tapping it with my stock radio.

Other than that though I like it alot and does all the features I need it to do.

Works great. My steering wheel buttons control my new head unit just like they did the factory one. Setup is easy. Response is a little slower than with the factory head unit but once you get used to it there are no problems.

Probably not the easiest device to install as an amplifier or a speaker but still can be installed by anyone, just follow the instructions and you'll be fine.

I installed this on a friends 06 impala SS, he had never complained about it not working nor malfunctioning, in fact he is a bit on the show off side. :P

I was worried about keeping the factory steering controls by using an aftermarket radio. This unit is easy to install and program. I highly recommend it.

I added the SWI-JACK to my new Clarion NX409 in my 2000 Acura 3.5RL. Installation was not very difficult, even for a novice such as myself. Programming, however, was quite a feat. Mostly user error, but partly a finicky device - it did take me many days to program it successfully. In the end, the volume up and down buttons work perfectly, and the track up button seeks the next station up on my radio. I'd prefer if the latter would change presets like it used to before, but perhaps I'm asking for too much (let this be a warning to all CLARION owners, it will probably do the same for you). It does change tracks on my Ipod as it should. Delay at first was a pain, but I was used to it after 5 minutes. I am so happy to have these buttons back again, this device is absolutely worth the money to me. To save yourself hassle, it is best if you install it while you install the radio.