Did you upgrade your factory head unit?
What radio is fitted? If it's one oh the newer ones that may be the cause
I've had the same problem recently, thought it might be my sub so disconnected it had the battery and Alternator tested and everything was fine, got it booked in the garage Monday I'll let you know what they say if they come back with anythingTommy
hey. have edition 30 with battery drain also rns 510 radio fitted help