mit Schaltwippen und
Join Date: Nov 2007
Location: United Kingdom
County: Greater London
I've recently retrofiitted the OEM RadioNav/Instant Nav (which replaced the ConnectNav, I think in September 2009 on 159s) to my 57 plate 159 after my Pioneer AVIC F900BT unit gave up on me. It was a great unit whilst it worked, but always looked a little aftermarket. I also wanted the full B&M and steering wheel control functionality, as well as for the car to look factory original. Someone from 159ownersclub.it who's been in touch with me is fitting the unit to their Brera.
I appreciate many on here may feel there are better satnav units out there to spend your hard-earned money on. It may well be one of the first things some might want to upgrade if their car came with one. And yes, the RadioNav is a little clunky. But Iíve found that itís not a bad unit after getting used to it. And aesthetically the cabin looks as it should be.
Not sure about the Brera date, but if your 159 was built pre-September 2009 you'll need more than just a wiring adapter. Hardware wise, you'll need to upgrade the B&M unit and speedo head unit. You'll also need to fit a new centre console with the larger opening for the bigger RadioNav unit and a GPS antenna. And you'll need to invest in Multiecuscan 2.1 to perform a PROXI alignment and get everything working properly and stop the speedo from flashing. I also updated my car's body computer to get zero failure codes when performing the PROXI alignment, but in practice it's possible to get everything aligned without updating the body computer. The only thing I haven't been able to sort out is the car graphic on the RadioNav - it had shown a graphic of a 159 SW (my car) but defaulted to a 159 saloon after fitting the speedo head and I haven't yet been able to change it back. The 159ownersclub.it guy fitting the unit to his Brera also has the same problem (he has a 159 saloon graphic showing). But working with Multiecuscan at the moment to see if can be fixed somehow. Otherwise, everything else works.
It may sound daunting, time consuming and expensive. But I picked many of the parts up on e-bay and the real difficulty was not having a clear blueprint to work off. Although with the help of Google Translate I was able to follow a 47-page thread on 159ownersclub.it charting the ups and downs of members' attempts to retrofit the InstantNav - although a little inconclusive. And I stared this off with no experience in car audio or electrics or messing around with bits of car trim. However, it is definitely a project.
I'm in the process of putting together a bit of a guide. In the meantime, if you're interested in the wiring diagram (non-Bose system), including details of the connectors you'll need, PM me with your e-mail address and I'll send it to you as a starter for 10 - the file size is too big to post on here.