Quote:
Originally Posted by Ashikabi
The incompatibility is probably that the Harmon unit has an amp internally and the stock one doesn't. Double amp sounds dicey
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If the factory head unit (or any head unit for that matter) can operate speakers directly, then it has internal amplification.
Every factory head unit in these cars was capable of powering speakers. They have ALL been able to run the front mid-range drivers and tweeters as well as rear speakers. None of these head units were strictly pre-amp only.
It should work as I described.