Hevac Relay/Resistor (Where does it go?)

So ive been having a nightmare time with battery drain!

Ive changed the battery a couple of days ago and everything seems fine but after reading up on it i do believe i have the same symptoms as others.

ive purchased the Hevac relay/resistor as advised to other owners

the only problem is i cant find where it goes :S

got the panels removed in the drivers footwell but nothing seems obvious

any help?

cheers in advance

Ask mattstevenson2005 i believe hes done this mod

thanks mate

cant seem to find his username

Thanks for the help

ive managed to do it with this guide DIY - Replacing the final stage unit/blower motor resistor - bimmerfest - BMW Forums

very fiddly but hopefully worth it!!! fingers crossed

i have however noticed my cd changer and sat nav constantly doing something even with the engine off :S never ends does it lol