David H. Diette's Comments

Comment Wall (28 comments)

You need to be a member of smart USA insider to add comments!

Join smart USA insider

At 10:35pm on May 15, 2009, Rick Hamilton said…
Hello David,

I've read much of the discussion in this forum and decided to purchase the Kenwood DNX7140, an after market wiring harness, installation kit, antenna adaptor, ipod adaptor and license plate rear camera. After checking with a local shop here in Hawaii, I'm seriously thinking about doing my own installation. They want to charge me $95/hour and stated the install would take about 4 hrs (~$400+)!

Could I trouble you to assist me with any questions I may have or problems I may encounter with my installation?

I've already taken time to learn how to remove the smart factory radio 10 w/ premium sound system. I've studied and compared the smart factory wiring harness to the after market harness and the Kenwood harness connections. And, I studied the Kenwood Installation and Operation manuals.

Additionally, I've gathered the tools for the job e.g. crimping tool, ties, T25 torx wrench, electrical tape, and wire butt connectors.

I would greatly appreciate your assistance with connections that are not perfect or 100% compatible with the aftermarket wiring harness and installation instructions.

For instance:

1) DNX 7140 connections without corresponding after market harness connect slots:

a – what location do you recommend to connect the wire for mute (brown)? Can I just tap into the chassis ground on the after market harness?

b – what location do you recommend in the smart to connect the parking sensor wire (light green)?

c – what location do you recommend to connect the wire the reverse sensor wire (purple/white)?

d – what do you recommend as far as connect the wires for power control (blue/white) and the power ant (blue) wires so that I retain function of the smart premium sound system subwoofer? Will I retain use with AM, FM, CD, DVD, etc if I combine these two wires with the 2 black wires on the smart wire harness?

2) DNX 7140 Accessory cable #3: For now I intend to keep the smart premium sound subwoofer. Do I need to connect the kenwood accessory cable #3 to the smart subwoofer and what wires do I need to connect?

3) DNX 7140 Accessory cable #2: What are relay 1 & relay 2 used for?

Thank you in advance for your assistance.

rick hamilton
At 7:18pm on April 8, 2009, Natty said…
Hi David!

My name is natty and I see you're from NH (one of the states I've been dying to visit) :)

anyways, I've been trying to find more participants from the New England area to take my Smart Car owner survey. This is for a marketing strategy plan that I have to do for one of my classes at Fordham University. It'll only take a few minutes and my group and I would really love to hear from you. :)

Just copy and paste this link onto your browser.

Thanks so much!
At 8:02am on April 8, 2009, Dave Mayall said…
Hi David
Come join our group at " Smart Car of Mass" Hope to see you on the 18th, a lot of folks would like audio work on their cars!
Dave Mayall
At 8:01am on April 8, 2009, Dave Mayall said…
Hi David
We are all getting ready for the Saturday, April 18th Smart Celebration in Lynnfield. The event will be from 11am to 4pm. Every Smart car gets a free car wash! Great food, raffles, awards for "favorite Smart" and "greatest distance traveled". Have your name put on your car. The names can be either "SMART" font or "Script", and colors can be silver or black. Simply let me know what you want on your car and I will put the order in. This is "FREE" and provided by Sign Art. The names will be 3/4" and put on the driver's upper door just below the window, send info for passenger's door also if you want. Lets make this a great Celebration with all of our Smart friends. The weather will be sunny and 63 so make sure you come by. Bring a friend, anyone interested in Smarts, take a test drive. No matter where you purchased your Smart, you are always welcome at All Mass Smart Car Events. We have to pass on great thanks to Herb Chambers, Mark Hoch, Gil Otero, Grace Cosco and the entire Smart Lynnfield team for their support. A lot of you folks ask about the Mercedes Badge on my car, I will have a cost for you next week and its a 10 min install. Check out my Page and Pics to see the Mercedes Badge located under the license plate. Please RSVP even if you can't make it, we would like to keep everyone in the Smart site loop.
Dave Mayall President
Smart Car of Mass
Call if you have any questions....anytime!
978-265-6647 Delete Comment
At 11:34pm on March 25, 2009, Dave Mayall said…
Hi David
This will be best celebration of the year, the 1 year birthday party! Please come by Smart Center of Lynnfield Mass. anytime between 11:00 am and 4:00 pm to meet and greet other Smart owners, and potential owners. Everyone is invited, if you know someone interested in the Smart car please bring them along. All are welcome,**Free Car Wash**, food, prizes, short fun runs every 2 hours. **Special offer, have your name or your Smarts name put on your car, (order ahead with David).** Meet Reps from the trailer company. A great Smart Car of Mass. and Smart Center of Lynnfield event! Please take a minute to RSVP so we can have a idea of attendance.
Hope to see you soon.
Dave Mayall, President
Smart Car of Mass. 978-265-6647
At 8:28pm on January 25, 2009, Pasde2 said…
Hi David,
I am looking for someone to install rear pillar speakers. Dave Mayall said to you may be able to do this.
Please let me know if you do or know of someone in the N.E area that will. Thank You
At 10:39pm on January 24, 2009, Dave Mayall said…
Hi David
I refereed a Smart owner to you, Kathy Thompson, she is looking for rear pillar speakers. "Pasde2"
Hope to meet you this year at a fun run!
David Mayall
Smart Car of Mass
At 6:07pm on November 9, 2008, Dave Mayall said…
Hi Dave
Any chance you can make the fun run to Maine with us, looks like its in your backyard!
RSVP under "events" for November 15th
Hope to see you :)
Dave Mayall
At 10:52pm on October 13, 2008, Dave Mayall said…
Hi Dave
Another question what happens to my am/fm radio when I install the DNX5120. I have the factory radio 6 cd changer installed now. Does this 5120 still have Fm and 6 disc changer??
Thanks David RUBY
At 10:45pm on October 13, 2008, Dave Mayall said…
You do installs of GPS on Smart Cars? Ill have to get more information from you.

David Mayall "RUBY"
At 10:00pm on September 10, 2008, Fred Greenwood said…
David I have a Pioneer AVIC-Z2 In Dash Navigation CAR DVD GPS 30GB Z2 do you have the face plate for this on if so how much Shipped to Alabama.

Fred greenwood101@gulftel.com
At 7:08pm on August 28, 2008, Marty said…
I'd basically like to hook up the Nav and the iPod but I'm not familiar with the German antenna adapter. I'm considering the 8120 instead of the 5120. Does that significantly change the install? If we could correspond via email, that works too. I'd like to know how much you want for the adapter, etc.

At 8:27pm on August 25, 2008, David H. Diette said…
25 August 2008: 14,500 miles, zero problems.
At 2:19pm on August 16, 2008, Marty said…

I wish you were out here in San Diego. I'd love to grab a DNX5120 but the Smart Dealer here wants to charge me $2995 to install a ~$800 unit. It's been a while since I've installed a unit in a car. Do you think it's possible to do it myself or is it just too much work. I know I need the the dash adapter and unit but otherwise don't really know what I'm getting myself into. Any advice would be much appreciated.


Marty Smith
At 11:39am on August 13, 2008, I'm Bill.. my smart is Annie said…
Thanks for joining my mileage discussion. I'm very glad to hear you put on so many miles with ZERO problems. I still have a long wait, but maybe smart will start importing more cars and my date will get closer,sooner..
At 9:45am on August 11, 2008, David H. Diette said…
13,000 miles and going strong!
At 7:19pm on July 26, 2008, David H. Diette said…
10,000 miles as of 25 July 2008!
At 9:23am on July 1, 2008, Rmichael said…
No, no, not you Rock as in Crystal but you rock as in cool 'cause Trekkie's rule!
At 7:19am on July 1, 2008, Rmichael said…
The dealer did not do the paint job so I guess it came from France. I have an email in to the dealer for better details. As you can imagine, I was so excited the day I got him that I didn't ask good questions.
At 10:10pm on June 30, 2008, Rmichael said…
"it runs on Dilithium Crystals." You ROCK!

find a

smart center



  • Add Photos
  • View All


  • Add Videos
  • View All

© 2015   Mercedes-Benz USA, LLC.

Badges  |  Report an Issue  |  Terms of Service