[Sooty Si]

Don't go near Halfords unless you're made of money! I did the wife's 147 with these:

http://www.ebay.co.uk/itm/Single-DIN-Pocket-Tray-Double-Din-Adapter-FP-016-/250598245407?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3a58d1c41f

http://www.ebay.co.uk/itm/CT23AR02A...arts_Vehicles_CarParts_SM&hash=item2a157ff925

http://www.ebay.co.uk/itm/ALFA-ROME...cles_Terminals_Cabling_ET&hash=item3f0ea178bd

Obviously, the last one will depend upon the make of stereo you're using. You'll probably also need an ISO harness adapter

When you connect the power wires, you will probably also need to swap the switched and permanent live wires, if it keeps blowing fuses - Alfa didn't wire their cars up like everyone else.

 

[Sooty Si]

No worries mate. If you run into any snags, let me know. I did it quite a while ago, but if I can be of any more help, I will.

Some of those kits can be a bit pricey, I think I bought all separate items when I did it, actually worked out cheaper even with postage. Try these guys as well: http://www.caraudiodirect.co.uk/install-adaptors-alfa-romeo/

 

[Sooty Si]

Try it first as plug and play, but if the radio fuse blows, or, as with happened with my 156, the stereo wouldn't turn on properly - just stayed on the demo function, you can try swapping the wires. IIRC, one is yellow, possibly orange, and the other is red, usually with an in-line fuse thing. Leaving enough cable length allow you to join them easily, snip both wires and rejoin, e.g. red to yellow and vice-versa. Replace the fuse and try again.

The advice I've given above and in previous posts is based on my personal experiences installing aftermarket stereos in my wife's 147 and my 156. I'm not responsible for any damage or faults that occur if you follow the advice. Do it at your own risk. :thumbs:

 

[Sooty Si]

Shame the Connect Nav+ is such a piece of crap. If they'd put a bit of effort into it, it could have been great. Maps that take ages to load from disc, lose their way half the time, and you can't navigate and listen to music at the same time unless you preload the map and hope there's no diversions on the way. Coupled with a cheap Blaupunkt CD player as well! The only half-decent bit is the phone. Better off with a decent HU and satnav / smartphone with google maps.