Battery Drain Clio 1.2 Expresssion

Hi



I have just bought a clio with a battery drain, just my look it seems its an intermtant fault.



I went straight for the alternator as I know these Valeo's are a little crap and can cause drain but all ok, same reading connected or disconnected,



With doors open I have a drain of 0.5amps closed I am getting 0.09ma Whilst checking with doors shut it started showing a 0.45a drain but went again.



The car has got an aftermarket stereo that looks like it has been fitted by chimps so I am going to pull this after Silverstone qualifying



Was just wondering if anyone else has come across an intermitant drain on these things.



Thanks for any help