Hi all, I am considering upgrading my 05 MCS stock HU (non HK) to the Alpine CDA-9855. I also have factory Nav. Do i need the following? I see parts on newministuff.com

1. stereo harness adapter
2. MFSW adapter
3. Nav interface
4. stereo aerial adapter

 

The parts offered at NewMINIstuff provide the easiest and in my opinion the best way to do the install.

If you wished you could cut the original factory connector off the cars wiring harness, then connect each wire from your new HU to the correct wire in the original wiring - but then you can't re-install the original stuff ... the adaptors are easier.
As for the MFSW adaptor - you don't need it if you don't want to use the steering wheel controls to control the new HU.
And you don't need the antenna adaptor if you don't want to listen to the radio! Someone recently was sold the wrong adaptor by a different company - stick with NewMINIstuff and know that they will give you the RIGHT stuff!

My recent install ... See here: