ReplacementRadios, one of the largest factory audio/video websites, has branched out!! If you?ve been to our site, you know we have a HUGE selection of OEM radios and compatible accessories. Now we?re offering a few select products here too. Same great ReplacementRadios quality.....in a new location. SUMMARY Remanufactured by an authorized Delco facility You MUST match your part number Not intended for upgrades DVD-based Integrated Navigation Radio (INR) Compatible with or without steering wheel controls. Compatible with or without OnStar Compatible with or without rear seat entertainment Compatible with or without XM radio (Requires antenna tuner - not included) Compatible with BOSE Non-Lux system ONLY! Not compatible with BOSE Lux system Not compatible with standard system Plays standard audio format CDs and CDRs Navigation antenna is required but is not included Navigation disc is required but is not included Does not have touch-screen Excellent condition (No worn buttons!!) You MUST match your part number GM part # 15108421 (Must match yours) You must provide your VIN prior to shipment Programming at a GM dealer is required for 100% functionality This is done after install Thank GM. It is their process 90 day defective replacement warranty Different from a return See Warranty Policy section below Returns are not accepted See Return Policy section below APPLICATIONS This radio works in the following vehicles (after programming) with radio part number 15108421. That doesn't mean it fits EVERY vehicle that happens to be on the list. Check your part number!! A different part number usually means there is something different about the radio. They made different versions for different years and equipment options. Your VIN will likely be requested prior to shipment. If you want to avoid possible delays, you can provide your VIN with the order. 2003 Chevrolet Avalanche 2003 Chevrolet Silverado 2003 Chevrolet Suburban 2003 Chevrolet Tahoe 2003 GMC Sierra 2003 GMC Yukon (including XL) ADDITIONAL INFO We don't give extensive details on the features of this radio because, if you're ordering this radio to replace the same part number, you should be familiar with the features. In other words, if you have this part number now, you will have the same features with this radio. We advise you to check with your dealer if you have any concerns about features, applications or special installation considerations. We can tell you GM programming will be required for 100% functionality and you will only get 100% functionality in vehicles which already have this part number. We are not selling this radio for upgrade purposes. It is intended for exact replacement only. Return Policy: Returns are not accepted. Why? Because we found people often experimented with navigation upgrades without doing the appropriate research. Then the radio was often scuffed up and/or had the protective plastic removed. Finally, the radio was often not shipped back in the same manner we shipped it. We protect our radios VERY well for shipping but we often got them back with inadequate protection and/or in under-sized boxes. We simply can't take the chance it will get back here damaged. If it was a $4 item, no problem. But not a $400 item. Just make sure it's the same as your part number or your dealer guarantees it is 100% interchangeable and you won't have a problem. Warranty Policy: A warranty exchange is different from a return. If you have a defect within the warranty period (which shouldn't happen with a new, tested radio), we offer replacement with the same part number only. No upgrades, downgrades, credits, refunds, etc. This radio is intended for exact replacement only. (Say, yours was stolen or is defective.) Please don't take a chance on this radio without checking your part number, thinking you can send it back if it doesn't work for you. That's not a warranty claim. Shipping Policy: We ship fast. We provide tracking. (It is uploaded into the system.) We protect the item very well. We insure this high-dollar item for more than the standard amount. This all means the shipping quote will be higher than it is for, say, a $100 radio. Several dollars more. Spending a few dollars more for that protection is well worth it.