To unlock my 2004 sti i have noticed i have to get up close to it for the keyfob to disarm the alarm so i think its time to replace the battery where can i get a battery from any help please and what battery is it ?Its the one that goes in the key

cheers jason

 

Go to a car audio specialists, cost me £6 but was a li battery well worth it, the cheap ones last a year and wear out fast if you need an address ill send it to you,
its on the A12 eastern avenue, gants hill, essex, ice next to burton power products if you google it

 

Cheers scatrat thanks for your help

 

I'm sures its either a CR2032 or CR2016, both available from Tesco's with a brand name.
Open it up and you'll see the writing on it. Its not a specialist item, and will be alot less than 6 quid from a supermarket.

 

Great i am off to get 1 later cheers all for your help jason