The Alpine RUE4178 Audio Remote Control is originally supplied with Audio System models: Alpine CHMS650RF, Alpine CHMS651RF, Alpine CHMS652RF, Alpine CHMS655RF, Alpine CRA1655RF, Alpine CRM1652RF,

The Alpine RUE4178 Audio Remote Control is compatible with Audio System models: Alpine CDA7939, Alpine CHA1254RF, Alpine CHM5650RF, Alpine CHMS600, Alpine CHMS601, Alpine CHMS665RF, Alpine TDA7554R,