Steering Wheel Controls Use Audio Steering Controls w/ Upgraded Aftermarket Stereo

Steering Wheel Radio Controls
This interface allows you to retain the use of your steering wheel and/or rear seat radio controls when replacing the factory head unit in select vehicles with an after market Stereo. This interface allows you to upgrade your vehicle's stock stereo to a better aftermarket Dvd, Mp3 or Cd player radio; and keep the convenience of using your factory steering wheel radio controls. Also some of these retains the use of heater control buttons on GM vehicles.
Known radios that are not supported. Radios with listed remotes are not supported.
 Manufacture Radio Model Remote
Eclipse The SWI-ECL does not support the following Models: CD3000, CD4000, CD5000, CD7000, CD8445, CD8455, CD5425, CD5435 -For these models use the SWI-X.  
JVC The ASWI-X does not work with the following remotes and possibly more. Look in the connection guide for an "O.E. Wired remote" connection and use the SWI-JACK. RM-RK230, RM-RK240, RM-RK250
Sony MEX-5DI, MEX-1HD, CDX-M850MP, CDX-M3DI, CDX-MP70, CDX-MP80, CDX-CA900X, CDX-M7815X, CDX-M730, CDX-M770, CDXM620, CDX-M670, CDX-M800, CDX-M8800, CDX-M8805X, CDX-M8815X CDX-M9905X, CDX-CA850X, CDX-CA860X. RM-X110, RM-X112, RM-X131, RM-X145A, RM-X143A
Known vehicles not supported.
Manufacture Model Year Description
BMW All with a 5v SWC wire All All with 5-volt SWC data wire at the steering column or a factory installed cellular phone that is in use!
Mercedes All 2005-2007  
Toyota Sienna All-2003 Sienna Vans
Volvo All All