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B5 Audi A4 S4 Nav Plus Install

Mar 11

I was suprised to find how little information there was on the Audi B5 Nav Plus Retrofit, it seems like this would be a common mod, I guess not. So I decided to find someone with a little experience, Jeff in the parts department has actually retrofitted the RNS-E Nav Plus system into his B5 A4 and he did a killer job, the fitment is exceptional. The install took Jeff several month to complete.

The first roadblock was the can-bus communication between the navigation and the radio was tough to establish, the time on the cluster did not match the Nav Plus screen. Second the Bluetooth was difficult to wire (make sure your wiring connections are 100%) it is most likely not a faulty Bluetooth module. The B5 A4 was never designed to have this system, so needless to say you will need to modify the heater by removing approx: 3 inches. Jeff did this install on 3/20/2008 so a tone of information is available, regardless this is not simple but well worth the effort.
B5 A4 S4 Nav Plus
B5 A4 S4 Nav Plus
B5 A4 S4 Nav Plus
B5 A4 S4 Nav Plus
B5 A4 S4 Nav Plus

Why does he have a turbo timer? Its a 2.8…….? Looks pretty clean though, sweet work. I also noticed that the radio is from a TT, and not an A4…any reason why?

From Cory on March 24th, 2011

excellent post. not a normal boring review. something new and informative.

From audi a4 1.9 tdi on May 4th, 2011

Not a 2.8, you are thinking of the A4. B5 S4’s are all 2.7 Biturbo. Also thanks for the great post, I’m planning a mod of mine, but I’m not a fan of the nav+ unit. I had a dynavin on my 01 330i, and am looking for a similar solution.

From InaudiblePC on December 30th, 2012

Actually, after a second look, you’re right…

From InaudiblePC on December 30th, 2012

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