GI-XSPEED LX3 fitting an Extra Fan

[nsw9154]

I am very happy with my LX3 it is a great receiver but the only thing about it that gives me any concern is that the plug in tuners seem to get Extremely Hot
even when in standby, so I always put it in Deep Standby when I am not using it
I had the top case off yesterday to replace the cable tuner with a sat one and did a little experiment
I disconnected the internal fan and put it next to the tuners and it fit nicely so I think that a 40mm fan will do the job, as the standard fan is 50mm and slightly high to fit snugly in the recess,now the standard fan has a 2pin connection and I do not think that I will be able to find an adapter to split the fan in to 2 feeds but I do not really want to use the standard fan's connection in case it caused a problem with the power drain
But the Hard Drive is connected with a standard 4 pin molex connector so I should easily be able to run a extra feed from that to power the extra fan
but I am not sure if I will cause any problems with the power delivery to the Hard Drive or the Receiver for that matter
in principle and on paper it should work fine it's just having the nerve to try it out, and Hopefully some one with a better nonage than me can tell me otherwise, here are a few pictures to show what I mean

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