most local stereo shops should have one or something similar. Stinger makes 2 versions as well. One is for lower wattage systems and another is for higher wattage systems. I have had the best luck with the PAC unit though. call around to local shops and see what they offer. Need anything else e-mail me @
twistedgalant@yahoo.com or hit me up on myspace.com/twistedgalant. Thanks