You may want to search for "DSP" on Renntech. There were quite a few "hits" when I checked.
Here's are a few that may answer your question:
http://www.renntech.org/forums/index.php?showtopic=22521&hl=dsp
http://www.renntech.org/forums/index.php?showtopic=3894&hl=DSP
http://www.renntech.org/forums/index.php?showtopic=13419&hl=dsp
They seem to say you need the controller, the 680 amp and a special wiring harness - pehaps more. I don't think I saw a post from anyone who made it work with a CDR-220 or CDR-22.
There also seemed to be a few folks that, like j.fro, were dissatisfied with the DSP. So you may want to consider your options.
Good luck.
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2000 Arctic Silver/Black, Hard Top, On Board Computer
PNP Rear Speakers, HAES 6-Channel Amp, Avic Z140BH,
Painted Bumperettes, 2004 (OEM) Top, Homelink integrated in dash with Targa switch, 997 Shifter, Carrera Gauge Cluster with silver gauge faces, heated 997 adaptive sports seats, Litronics, silver console
Last edited by KevinH1990; 12-04-2009 at 02:03 PM.
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