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C2R-GM11b Radio Replacement Interface for Select 2004-09 GM

Only 1 left in stock
  • $76.98
Market price: $119.95, you save $42.97
C2R-GM11b Radio replacement Interface for GM 11-bit
Score: 4.50 (votes: 2)
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  • Net weight
    1 lbs
  • Part Number
Do you want to quickly and easily replace the factory GM LAN Radio?

If so, you need the C2R-GM11b. This device is a plug-n-play Chime and Data-bus Integration Interface that will allow you to replace the GM LAN Radio with an aftermarket radio. The C2R-GM11b is compatible with the select 2004-09 GM LAN 11-pin Radios listed in the pull-down menu below without OnStar® or when OnStar is not serviced or unwanted. The C2R-GM11 interface replicates all factory warning chimes, audible turn signal indicators and provides a data bus generated 12 volt accessory output that acts just as GM’s R.A.P. (Retained Accessory Power) system did prior to radio removal. R.A.P. keeps the radio powered after the key is off, until the driver door is opened or a 10 minute timer ends, whichever comes first. The C2R-GM11b also provides a single wire output for connecting an optional SWI-RC Steering wheel control interface for Alpine, Clarion, Eclipse, JVC, Kenwood, Pioneer, Sony, and many other aftermarket Radios. The SWI-RC retain the convenience of factory steering wheel controls when upgrading the factory radio with an aftermarket radio.
» Enables aftermarket radio installation without retention of the factory radio
» Supplies the appropriate warning tone from it's built-in speaker such as; door ajar, seat belt, low oil pressure, hi-temp, low fuel, etc.
» Safe & Sound Class II circuitry will not disable vehicle data bus even if interface loses power
» Provides +12v switched accessory output. No more searching for switched +12v in fuse box or kick panel
» New radio will operate with the vehicle RAP (Retained Accessory Power) system. The radio stays on for 10 minutes after the key is turned off.
» Will work with or without factory amplified audio system.
[Please read all requirements and warnings below prior to purchasing this part]
1. Compatible with select 2004-09 GM "BOSE Amplified System", "Standard" or " BOSE®" if OnStar® retention is *NOT* required.
2. Recommended for use with aftermarket radio Line-level input of 2-4 Volts.
3. C2R-GM11b does not retain factory XM or Onstar. Replacing the radio means you will *NOT* be able to retain XM.
Click to review Installation Instructions

1. To retain Onstar, use the OS-311 interface instead.
2. To retain steering wheel controls, purchase the SWI-RC aftermarket steering wheel control interface. (sold separately).

DISCLAIMER: Under no circumstances shall the manufacturer or the distributors (Discount Car Stereo) of the C2R-GM11b parts be held liable for consequential damages sustained in connection with the C2R-GM11b. The manufacture and it’s distributors (Discount Car Stereo) will not, nor will they authorize any representative or any other individual to assume obligation or liability in relation to the C2R-GM11b other than its replacement.

  • My Vehicle
    Select Compatible Vehicle, 2005-06 Cobalt, 2004-07 Malibu, 2008 Malibu Classic, 2004-07 Malibu Maxx, 2005-09 G6
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Our family owned and operated specialty store makes every effort to get your order processed and shipped at soon as possible; however any products marked "assembly time required" or "assembled by hand" needs additional time (usually 1-3 days) to assemble and then shipped using shipping method select at checkout. Selecting a faster shipping method does not guarantee a quicker assembly process, but does speed up delivery.
Products requiring assembly are identified with: "Made by hand" or "Made in house" image in picture areas of the respective product.
Delivery time for in stock products requiring assembly= Assembly time (1-3 days) + transit time (your shipping method).
Example: Order our very popular Corvette Bluetooth A2DIY-C5 and choose "USPS Priority Mail (2-4 days) shipping. Expect delivery 5-7 business days after order placement.
Please contact us first regarding time sensitive deliveries.
Parts not requiring assembly or customization (off-the-shelf), usually ship within 24 hours.
Tracking information is sent to your email upon labeling and if you have an account, that is also updated at the same time. All customers (with or without accounts) can check order status online which has the same details available to our staff.
Except for Priority Mail Express® (Overnight Delivery*), USPS delivery times for Priority Mail® and First-Class Mail® are estimates and are not guaranteed; however deliveries are completed in most states within 2-7 working days.
International orders require additional paperwork and processing time prior to shipping (usually 4 days).
Free shipping (when available); applies to US only

*with a money-back guarantee

Defective returns:
Our return policy differs from than of other online merchants and we encourage customer read it in its entirety prior to ordering.
Defective returns are eligible for warranty repair or replacement service: Within the first 10 days, Discount Car Stereo will replace any defective or damaged part and provide a pre-paid return label (US Customers only). (Pre-paid labels are not issued for other return reasons).
After 10 days of receipt, customer covers return shipping cost, however we cover shipping cost to supplier/manufacturer, and to ship replacement back to you. If original purchase can't be replaced (discontinued etc), we reserve the right to provide a substitute part of higher or equal value. Any claims for missing parts must be made within 7 days of delivery.
We strive to avoid costly returns by providing our customer with as much product information and applications. Click to read the full returns policy page.

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