When replacing the OEM radio some feature may be lost. This interface will retain those features and also provide Navigation outputs when adding an aftermarket Navigation radio. This interface is prewired for ASWC-1( sold separately) to retain steering wheel control functions as long as the aftermarket radio is steering wheel control capable. This interface works in select Mercedes 2005-Up. Prewired ASWC-1 harness included (_ASWC-1 sold separately_). High level speaker input . USB Updatable.
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