All-in-one radio replacement & steering wheel control interface</br>?	Preloaded with amp-retention & navigation-based output signals</br>?	Retains all important OEM safety & convenience features?? Data-controlled RAP accessory output??Data-controlled outputs for connection to navigation radio & speed?? reverse & e-brake status output wires</br>?	Keeps vehicle database intact for service & emissions testing?? Retains factory-installed amplified audio system</br>?	Interface can be quickly updated if needed from the PAC website using PAC-UP USB adapter(For select Mazda vehicles)</br></br>Product Description</br></br>An all-in-one radio replacement and SWC interface?? the innovative new RadioPRO4 comes pre-loaded with amplifier retention and SWC software?? navigation based output signals and other features that save time and money during installation.</br><br/>http://www.amazon.com/gp/product/B0095UH3O2