Awd Battry Drain Help

[AaronGTR32]

Hey guys, anyhelp with this problem would be fantastic or even a reccomended auto electrician that comes to you to help trouble shoot.

I have an r32 gtr for about a year and half now and it came with a RWD switch that they actualy used the headlights button on the top right hand side of the dash. I assumed they used this button as u can already turn ure headlights on the normal way buy turning the right can knob. So virtualy used it as it was a spare button. Although with the switch left in AWD mode i can hear the relay in the boot click every 10 seconds or so, (even when the car is on), until the battery is dead. I did find out that if i hit the switch to RWD mode then switch the car off, the relay doesnt click at all, and the battery is fine. Now when i got my alarm installed, the guy, i told him the problem and he has a quick look and saw my AWD fuse blown under the dash and when replaced with a new one the button didnt work at all!, and was left in RWD mode which i dont want.

I just want it left in AWD mode and the draining of the battery to stop. As waking up at 2 in the morning cause the alarm going off about low battery is absolute shitting me up the wall because i forgot to turn the car off in RWD mode. I might take some pictures to help explain my situation if needed. I might add there is a little white after market switch in the fuse box that replaced the AWD fuse under the bonnet.

Cheers guys.

[AaronGTR32]

I might add i find it strange that someone would install this switch and have this problem so the switch might be fine its something else, eg. an AWD problem, like the relay in the boot is broken or the awd pump thing needs regassing which i read someone about a similar problem. any ideas?