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New Kenwood Head Unit Question...

 
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Old 02-18-2009, 07:22 PM
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Icon5 New Kenwood Head Unit Question...

I know some of the older Hondas you had to keep the factory radio in the car when you installed a new after market head unit. According to Crutchfield, 2000 Preludes don't require this. Can someone confirm this?

I also found out that the factory rear amplifier for the factory 6x9's is usless. Crutchfield tech suggested that I run dedicated 18 gauge wires between the new Boston Acoustic 6x9's and the new Kenwood head unit. He went on to say that I could completely remove the factory radio, rear amp and 2 ohm OEM 6x9 speakers.

My ultimate question is: Do I have to leave the stock radio in the car. I'm looking for a second opinion based on experience.

Thanks!
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Old 02-18-2009, 08:06 PM
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Re: New Kenwood Head Unit Question...

nope the stock headunit will come come out
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Old 02-18-2009, 08:12 PM
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Icon14 Re: New Kenwood Head Unit Question...

Cool. That's good news! Now I can run my 2 rear speaker wire pairs and my Sirius antenna from the rear of the car to the head unit. Simple enough. Looks like the factory amp and head unit will find its way to "Flea bay."

Thanks for your help. Got the piece of mind to proceed as planned.

Thanks again!

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Old 02-18-2009, 08:37 PM
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Re: New Kenwood Head Unit Question...

Yes factory radio comes right out, just have to get the wire harness for your kenwood to slide right into the factory one. Pry out the bezel with a flathead and shop cloth. 4 Screws hold the factory harness in play.
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Old 02-19-2009, 03:25 AM
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Re: New Kenwood Head Unit Question...

The only cars that needed the factory radio left in were like 00-01 civic ex with factory keyless entry. Fun the keep them in the car too.

You actually don't even need to run new wires. Use the wires that went to the amp and hook them to the wires that go to the spekers. I did a write up on this a while back. But use the harness adaptor to find wire colors at the head unit. They will be the same wires at the amp. Match LR + and - and RR + and - of the speakers to the appropriate wires going to the head unit. Very simple when you look at it.
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Old 02-19-2009, 02:02 PM
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Icon5 Re: New Kenwood Head Unit Question...

Other than the light gauge of the wire, does it work ok with a head unit pushing 22RMS? The factory wire is so thin, like fishing line compared to the 16 gauge copper I bought.

I'm installing Boston Acoustics, S95's, 6x9's. They run on between 2-35 RMS, 50-20khz at 92 DB.

Appreciate your thoughts and help. If the factory wire is sufficient, then I'll use it.

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Old 02-19-2009, 03:22 PM
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Re: New Kenwood Head Unit Question...

It will work more than sufficiently. You would have to run 100-200 watts through factory wires before you have any kind of degradation in the amount of power your speaker receives.
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Old 02-19-2009, 09:26 PM
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Re: New Kenwood Head Unit Question...

Cool. Thanks for the heads-up. The install just got a whole lot simpler.

Thanks again.

V1
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Old 02-19-2009, 09:51 PM
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Re: New Kenwood Head Unit Question...

No prob! Let me know if you have any questions.
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Old 02-21-2009, 03:17 PM
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Re: New Kenwood Head Unit Question...

I used a Metra brand Honda adapter and an Alpine adapter...solder them together and shrink wrap with electical shrink wrap (no fire danger this way)....I now have a seamless plug and play harness so I can remove my Alpine and reinstall the Stocker if I ever wanted to sell my car and the key to this way is I DIDNT have to cut any wires or bend in the car to make connections...I just soldered on a table and plugged them in to the stock harness and the Alpine deck...much cleaner than cutting stock adapter off and soldering in the car.


I can take pics if you want...I have my old one for my Accord...
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Old 02-21-2009, 03:27 PM
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Re: New Kenwood Head Unit Question...

Right.he's got that down but is installing aftermarket rear speakers and they will play much better running off the Kenwood radio than the factory amplifier. So rather than running new wires an amp bypass using existing wires is much easier and cleaner.
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Old 02-21-2009, 03:35 PM
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Oh yea....ALL Prelude owners should remove that stock "amplifier" the day of purchase! Completely useless but no need to run wires...I think Metra have speaker adapters too so you can plug and play with the speakers as well.

Metra has stereo and speaker adapters which allows one to plug and play with everything NO need for cutting if you down to spend a few dollars....


http://www.metraonline.com/products.aspx

Harness in-to car part # 70-1720
Speaker part # 72-7800

You can just enter your year, make and model to see all the pics

Last edited by hotrod; 02-23-2009 at 12:04 PM. Reason: merging back to back posts.
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