Metra Electronics 2 Channel FM Modulator with auto switching. 

Model FMMOD03 

Works on two frequencies, 87.9 MHz and 88.3 MHz

Tested and in working condition.  

Please use the pictures as the best description.

Feel free to email me if you have questions. 

All items are described to the best of my knowledge. 

I always ship within 24 hours, including Saturday.

I always reciprocate feedback ASAP. 

Thank You for taking the time to look and have a great day.