Post by
adboom »
https://forums.nicoclub.com/adboom-u36116.html
Tue Jan 10, 2006 11:55 am
Back to the topic of this thread... I have a 2003 M45 that was not pre-wired. I had to order the tuner kit (I got Sirius), antenna (I got the new small one with the yellow to yellow/green splitter) and the wire harness with N-BUS cable. I have the wiring diagrams for all of this if anyone needs it.
Here are a few notes for all of you out there looking to do this... It takes about 2-3 hours to install the cable harness correctly. You have to take apart part of your dash and center console. If you follow directions, it goes just fine. I originally ordered a Sirius receiver from a 2006 M45 because the dealer told me it will work with my car and it was less expensive then the model for the 2003. It turns out it is only compatible with the pre-wired 2003/4 M45's, not the ones that are not. (This seems a little weird to me, but we tried 2 of the newer units, but they had an issue that the screen would not come off 'ACQUIRING'. We tried a different antenna (since some have been found to be defective), then finally tried a 2003 unit and it worked fine.
There are links out there on the web about the vin number range on the 2003 cars that were pre-wired and the ones that are not. There is also a rumor that there is a black sticker on the inside of driver door if it is pre-wired. I can't confirm this because my car was not pre-wired.
Let me know if you have any questions.adboom