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All 4 of my door speakers are dead (no they didn't die all at once). Doing my research on the board I know I need 4" speakers. However, does anyone know what the impedance is on the speakers? Are they 2 or 4 ohms? Also, what is the best option to get a mini-jack 3.5mm installed on the nakamichi system. Can I route it through "tape" as a line in? thanks....

I also have the same problem w/ my Nakamichi 91 ls 400. The speakers started dying one by one, and finally all 4 are now officially gone. The two tweeters up front + subwoofer are still functioning. From my online research, the speakers failing seems to be a common problem for the 90-94 ls 400's. Here's a quote from http://carstereohelp.com/lexus.htm "No audio from one or more speakers. This problem may be defective speakers with Nakamichi only." "Is it a speaker or Nakamichi amplifier problem? Speaker problems are common to the Nakamichi system. Door tweeter works and door speaker does not, bad speaker. It is always best to check speakers before removing the amplifier for repair. Try a working speaker in a non-working position for testing purposes." I'm quite inept w/ car repairs so I figure I should leave it for the professionals. Thought about getting these, wondering if anybody would risk taking it to a chain (future shop/best buy) to get them replaced. If not, do you have any suggestions for good car audio shops in the Markham/Richmond Hill region of Toronto. http://www.futureshop.ca/catalog/proddetai...978&catid=11041 any help is appreciated.....thanks