Hi all..hope i can get some of your expert advice please..

audi a4 1996 p reg model 1.8
Issues:

1*when locking the door the central locking pump seems slow (whirs quite a bit,3 secs?) and the doors are sluggish to lock

seen this on ebay..cheap, easy to fit myself? would this solve the sluggish issue?
http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWAX:IT

2*When i lock the car the horn beeps once quietly and the alarm will start blairing after 10 mins or so then stop then start again 10 mins repeat repeat..
so i have to leave it unlocked..(dont have a key fob,just normal key)

could i buy this to bypass the audi stock locks..thus stopping the alarm going off unwanted

http://www.rclick.co.uk/product_info...roducts_id=671

3*When i start the car,if i turn the ignition off then try to restart it the car won't start..it fires up then goes off afer 2 seconds..
I have to take out the key and re insert it to make the car start again

maybe i need this/these

http://cgi.ebay.co.uk/1995-AUDI-A4-1...item3ca6fbb274

or

http://cgi.ebay.co.uk/AUDI-A3-A4-A6-...item3caf138553

4*when i'm idle the car nearly cuts out when stood still (rpms dip intermintently nearly stalling)

cheers..anyone advice?