Well I bought my 01 gsr certified pre-owned, and everything worked great. I pulled the stock radio out and replaced it with a panasonic touchscreen one. If I plug the CD changer into the Panasonic reciever, my antenna will not go up or down. As soon as I unplug the cd changer, the antenna will go right up(as long as the radio is on, of course). What's the deal?? Thanks. -JP

 

Try hitting reset after you plug in the changer. 94