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Upgrading OEM Alpine for Harman Kardon

6619 Views 6 Replies 4 Participants Last post by  TrailRunner
Newbie here. I am curious how I would go about upgrading my OEM sound system on my 03 Discovery HE7. The current system (I believe it is the Alpine) is just very poor in sound quality. I had an 00 Discovery with the Harman Kardon and it was much better.

Would I need to switch out all the speakers, the head unit, amp, etc.? Where could I find the parts used other than eBay? Is it as simple as unplugging the old and plugging in the new? Or is it more complicated than that?

I realize the best route would be to upgrade to an aftermarket system. However I like the OEM it a character flaw of mine.

Thanks for you advice.
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On the up-graded Harmon Cardon system, the only difference was the amp.
If toy want to improve the sound of your current system, up-grade all your speakers.
I have to stand corrected, my original statement was wrong, the speakers are also HK and the wiring harness is different between the 2 systems so you can't plug a HK speaker into a Alpine system.
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