How do I remove the armrest extension? And a Sirius radio question.?

I'M NOT SURE ABOUT THE ARM REST EXTENSION, BUT I BELIEVE IF YOU REMOVE IT YOU WILL HAVE TO ORDER A REGULAR LID FOR THE CONSOLE, I WOULD RECCOMEND SENDING AN E-MAIL TO THIS GUY, HE IS THE PARTS MANAGER A A SUBARU DEALER, VERY EASY TO DEAL WITH VERY KNOWLEDGEABLE JDOUGLAS@MIKESCARFFSUBARU.COM, OR 1866-528-5282 AS FOR SIRUS RADIO SOUNDS LIKE U DON'T HAVE A SUBSCRIPTION,, AS FOR THE SIGNAL LOSS THE ANTENNA MAY HAVE A SHORT OR NOT CONNECTED TO THE RADIO WELL , BUT SIRIUS AND XM HAVE MERGED. AND WILL BECOME ONE LATER THIS YEAR