Base stereo system speaker ohm load question

[Jamsandolina]

Hello. I've had my maverick for a month now. I've been wreaking my brain on the Base audio system. I know the front door speakers and the dash tweeters are wired in parallel. I know the door speaker is 4 ohm and the tweeter is 8 ohm. That makes a final ohm load of 2.67 ohms. Does that mean the stock headunit is stable down to 2 ohms? Unless the passive caps that are on the tweeters make the final ohm load of 4 ohms. I want to put a better component set up front but most aftermarket sets have a final ohm load of 4 ohms. The specific pioneer component set I want has a 4 ohm 6.5 and a 6 ohm tweeter that gets wired in parallel. It's the new pioneer A max series set ts-a653ch. Any info would help me out greatly. Thanks

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[KeithVi]

I can only speak for what worked for me. The factory radio had no problem with a 4ohm x-over spliced to the rear speaker channel feeding the factory rear speaker and new Powerbass front tweeter.

I ran new wires to my tweeters from x-overs behind my glove box.
i wanted to feed tweeters from rear channels

Fed my x-overs with rear speaker output (spliced Puzu harness at output of factory module)
no x-over loss on front door speakers, the Puzu lets me tune rear speaker channel x-overs ...

PUZU PZ-C7 (6ch DSP/amp, w/sub out) comes with plug & play harness
The Puzu has sub-outs and helps to preset your sub amp sources through the DSP
made installing my hs10 simple.