Sorry, my reply was poorly worded:
If your deck has a separate sub out then you could use that for the subs. This would free up the LOW (or SUB) out on the outboard crossover to use for the midbass provided it is a stereo output. High pass for these would have to come from the deck or amp. Then the MIDS could use the bandpassed MID out and the Tweets the HIGH out.

I would avoid using deck power.

Where is the TA coming from? The deck?

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Paul Niwranski
1966 Cadillac Superior Crown Royale Limousine Hearse

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