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Old 12-05-2017, 01:12 PM   #1
whitelegacy98
Scooby Newbie
 
Member#: 39542
Join Date: Jul 2003
Location: Seattle
Vehicle:
1998 Legacy L
White

Default FV631US died in my '16 WRX Limited Harmon Kardon. Can I replace with a '17 FV642US?

Title says it all. The 7" FV631US HU in my 2016 wrx limited harmon kardon spontaneously died--black screen unresponsive even after pulling fuses and even the battery terminals. Seems as though it just bricked. Occasionally the soft keys blink, but that is all.

I am out of warranty but want to replace it. Unfortunately, I cannot find another in good condition. I did find, however, a '17 FV642US. Would this be a plug and play replacement? I understand the harmon kardon setup complicates things, but am hopeful the 2017 HU is a usable substitute.

Thanks in advance. I am going crazy on my 70 mile daily commute without a stereo.
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Old 12-05-2017, 01:30 PM   #2
Infinite0180
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Member#: 410716
Join Date: Jan 2015
Location: Buffalo NY
Vehicle:
2016 WRX
CBS

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Im fairly sure the HK system is the same on 16-18 so it should be plug and play. Im not certain though. Somebody on here will know though...
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Old 12-05-2017, 07:13 PM   #3
SVXdc
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Member#: 25837
Join Date: Oct 2002
Chapter/Region: South East
Location: Atlanta, GA
Vehicle:
1996 SVX L AWD
Laguna Blue Pearl

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I concur -- fairly sure that a 2017 FV642US (7" nav h/k) would work in place of your 2016 FV631US (7" nav h/k).

Are you not still under warranty? Even if you've gone past the 36K miles, I recommend that you call SOA to ask for relief. The OEM HU is too expensive a part and should not have died this soon. SOA will ask you to have a dealer write up a confirmation that the HU is dead, which a service adviser should be able to see in just a couple of minutes (i.e., without having to pay time for a technician to look at it).
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