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Old 01-04-2015, 01:53 PM   #6
JayG
On the slippery slope
 
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Join Date: Mar 2014
Location: Austin and Palm Springs
Posts: 3,793
Garage
2003/4 models use the MOST bus. If it did not have a factory amp or CD changer, it wont have the fiber optic cable (MOST). Also the CDR-23 uses the MOST bus as well and probably wont work with an older factory amp or CD changer. If you have an older radio, it probably would work

You could go with an aftermarket amp. Not sure if there are aftermarket CD changers that would work with an CDR-23 (don't think so)
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