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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 55,932
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Stereo guys, VSS connection for head unit in 2008 Boxster
Folks, anyone know where to get/tap the VSS/Speed dependent Vol Control/speed pulse signal wire in a 2008 Boxster for a headunit to have the volume adjust with the speed of the vehicle?
This Pelican article covers 1997-2004. I'd like to be certain that the 2008 is the same before I go connecting things. Porsche Boxster iPod Integration and Stereo Head Unit Replacement - 986 / 987 (1997-08) - Pelican Parts Technical Article The sad thing (to me) is that my stereo has a GPS, but it requires the speed pulse signal from the car to do the whole speed sensitive volume control thing rather than just using the GPS. I guess they'd have too many problems with spotty GPS signals and the volume fluctuating.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
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05-14-2016, 07:25 PM
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Did you get the memo?
Join Date: Mar 2003
Location: Wichita, KS
Posts: 32,389
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Are you sure you want it? I've never had a car where I didn't disable that feature.
It might be a challenge, the newer cars with the MOST fiber optic network are a challenge to work with. It might be a data signal on a bus rather than a discrete voltage signal that you can get by tapping a wire. I assume you are buying the MOST integration kit for connection to your stock amplifiers?
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‘07 Mazda RX8-8 Past: 911T, 911SC, Carrera, 951s, 955, 996s, 987s, 986s, 997s, BMW 5x, C36, C63, XJR, S8, Maserati Coupe, GT500, etc |
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05-15-2016, 03:50 AM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 55,932
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I like it, or at least, I did in the '04 miata. It had 7 different possible volume curve options that you could set. The Pioneer that I have has 3 or 4. It would be nice, because as I go faster, the stereo does get a bit harder to hear with the soft top.
Yes, I have the MOST system. I was afraid of that. I guess whatever MOST adapter the installer used must not provide the VSS to the head unit. I was hoping there was a wire somewhere that I could tap.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa SOLD 2004 - gone but not forgotten
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05-15-2016, 04:35 AM
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Did you get the memo?
Join Date: Mar 2003
Location: Wichita, KS
Posts: 32,389
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I don't know for certain, but almost everything in the newer Porsches goes through the fiber optic MOST databus as opposed to discrete signals. The joy of technology.
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‘07 Mazda RX8-8 Past: 911T, 911SC, Carrera, 951s, 955, 996s, 987s, 986s, 997s, BMW 5x, C36, C63, XJR, S8, Maserati Coupe, GT500, etc |
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05-15-2016, 05:21 AM
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