This is a Xtant RGM1 card with the knob and wire.RGM1 is a Remote Gain control for subwoofer control up front.You will get the full out of your Xtant.It was used in x1001 and 1001dx for me.$60.00 shipped
Anyone need a great Xtant RGM1?If you don't have one you are missing out!//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
x1001,x1001e,x603,x604,1001dx.1001d and might fit others but, i know these for sure.It the comes with RGM1 car and the RLC and 22 ft. Cord.Knob Adjusts up to 15dB of Gain.It adds Control for either Subwoofers or Stereo Channels.