Easily replace the Class II factory radio in your Cadillac vehicle with this Radio Replacement Interface with OnStar Retention by PAC. The OS-2C-CTSX allows you to install an upgraded aftermarket radio without losing important factory features such as OnStar, the factory-amplified sound system, and warning chimes. This radio replacement interface is plug-and-play for simple installation.
Q: What Cadillac vehicles are compatible with this interface?
A: This interface is compatible with select Cadillac vehicles, including CTS (2003-2007) and SRX (2004-2005) models.
Q: Does this interface retain the factory amplified sound system?
A: Yes, this interface retains the BOSE amplified sound system if your vehicle is equipped with it.
Q: How is this interface connected for installation?
A: This interface uses plug-and-play connections for quick and easy installation.
Q: Does this interface provide an accessory output?
A: Yes, this interface provides a 12V accessory output for use with 12V devices.
Q: Can I retain steering wheel audio controls with this interface?
A: Yes, you can retain steering wheel audio controls by connecting an optional module using the wired output provided by the interface.
Rating 5 out of 5 stars with 4 reviews
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Easily replace the Class II factory radio in your Cadillac vehicle with this Radio Replacement Interface with OnStar Retention by PAC. The OS-2C-CTSX allows you to install an upgraded aftermarket radio without losing important factory features such as OnStar, the factory-amplified sound system, and warning chimes. This radio replacement interface is plug-and-play for simple installation.

Install an aftermarket stereo in your compatible Cadillac vehicle with this kit that features ABS plastic material for durability and an interchangeable design with a recessed DIN opening.

Install your after-market radio with this Metra dash kit. Compatible with select 2016-2021 Honda Civic LX, it's made of scratch-resistant materials for a professional-looking install.

Tune your car connection with this AXXESS chime interface. The multimedia radio outputs offer multiple vehicle motion functions, such as reverse and speed sense, while the built-in audio controls enable hassle-free access. This AXXESS chime interface fits select 1996-2005 Cadillac vehicles for seamless operation.
| Pros for PAC - Radio Replacement Interface with OnStar Retention for Select Cadillac Vehicles - Blue | |||
|---|---|---|---|
| There were no pros for this product— | Fit | Fit, Installation Ease, Design, Appearance | There were no pros for this product— |