ROFLwhen you turn it on, check and see if it says monsoon, if so you have an amp. If not, from what I understand your out of luck
The system was nice, but in order to hook up a subwoofer I had to start from scratch. Now I have a full blown aftermarket stereo system.I like my Monsoon 6 Disc XM just fine!
Who else likes their Monsoon unit?