Review on Metra GMOS OnStar Interface Systems by Chp Rodgers

I would not recommend this kit for beginners as it is quite confusing and because it is so versatile it is difficult to figure out what to connect for YOUR car and vehicle (even more confusing if you have steering wheel controls). Module). But once you get the hang of it, or if there were better guides, that would be ideal. I would recommend that the manufacturers of this device spend some money to create clear and high quality installation videos for common vehicle types. It's also a little tricky to figure out which one works on YOUR car. Once installed it works perfectly. I would highly recommend buying hot solder butt connectors if you need to make any type of bare wire connection in your setup. My only concern is that it's quite expensive for what it is, but if you have a BOSE system you won't be able to properly mount the radio without it.