You'll find plenty of on-line sellers just be searching on RM-X4S. Crutchfield carries it; great service but perhaps not the best price. SoundDomain.com had it for $30 U.S.D. My understanding was that the X4S superceded the X2S model (I could be wrong).

Jim

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Jim


'Tis the exceptional fellow who lies awake at night thinking of his successes.