Fitting MG Seatbelts:

Step 1: Finding & Removing.
When I say MG I mean Metro, Meastro, Montego.. and various other Austin "Special" Editions such as the Metro ARX & some Sport models.
To remove the seatbelts from an MG Metro...
A) Remove the plastic trim/covers from the seatbelt reels. These are held on with four self tapping screws.
b) Using a large socket (can't remember what size-doh!) remove the brass coloured bolt that holds the seatbelt reel in place.
c) Pop off the plastic trims from the seatbelt anchor on the door pillar. Remove the brassy bolt from here and the bolt that holds the seat belt floor bar down, still using the same size socket.
d) Withdraw the whole lot. It is NOT possible to seperate any parts from the seatbelt assembly. Unhoop the belt end from the floor bar. Luckily the clip/linkage bit is the same as the fiesta.

Step 2: Fitting:
Remove your Fiesta Belts, the method of removal is the same as above except:
You have to remove the interior cards, they're held in with plastic clips that will usually snap (b*stard fecking things!), to access the seat belt reels.
For rear belts look in the boot and under the seat numbnut!
Also, some parts of the front seat belt assembly will have to be threaded-through the rear interior cards. Pop-off the small plastic trim bits first.

Feed the new MG belt bits through the side trim cards before bolting them in place of the Fiesta ones. You will use the metro door pillar bracket for this which is smaller than the Fiesta item.
You'll need the plastic trims from the Metro for the pillar attachments. (which I forgot when doing my car, although they look pretty mean with exposed bolts)
Thread the hoop end of the belt over the Fiesta floor bar.

Thats It ! You now have red belts. Be careful when fitting the reel mechanisms, if fitted at an odd angle they'll keep snatching the belt.

One last thing, the MG belts will have grey/brown coloured trim around the snap-in bit. Colour these using a black marker! If you're real daring you could brake them off, brake some Fiesta ones and glue them back together over the end.