2010 Shelby & Kenwood eXcelon DMX905S

Group using the FO1 and FO2 firmware for Ford SYNC retention * see specific firmware for full feature list.
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2010 Shelby & Kenwood eXcelon DMX905S

Post by Kuchulainn » Wed Jul 25, 2018 11:29 pm

Hi guys,

A year ago, bought a second hand 2010 Ford Mustang GT500. The previous owner upgraded to a Kenwood DNX9990 head unit, with a MUS1 dash kit and Maestro RR module. Fast forward to a month ago, the head unit dies on me, time to upgrade.

I acquired a DMX905S (listed as compatible), flashed the RR module with the latest firmware and the serial of the new head unit, but no matter how many time I try again, it is not working (the icons on the DMX905S are grayed out, the MUS1 switches don't work, and neither do the steering wheel buttons).

Any pointers?

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Dara DeGrand
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Re: 2010 Shelby & Kenwood eXcelon DMX905S

Post by Dara DeGrand » Thu Jul 26, 2018 8:36 am

I'm pretty certain you're missing your data cable (all black cable, with 4 pins on both ends) - the DNX9990 didn't use it, and the newer kenwoods require it for data communication. Replacement data cables can be purchased for $15 shipped in the US.
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

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