HU killing the batterie

[russ_coffey]

i got a new HU the other month and finally got round to swapping the power cables so that it would remember its settings. after doing this i didnt use my car for a few weeks, went out to it to day to find it had a flat batterie. i've never had this problem before, is it possible that the HU was draining the batterie?

 

[CupraSport]

yes, you could of drained the battery easily. Check your wiring to the HU

 

[russ_coffey]

??? i just pluged it in didnt have to do any wiring

 

[truCido]

its normal for if you haven't driven a car for a few weeks for the battery to die...if you've got an alarm that'll drain it, the stereo will drain it etc. If your not going to use it for a few weeks then you could unplug the battery?

 

[russ_coffey]

it was only a few days, and ive never had a problem starting the car after a few weeks of no use

 

[andycupra]

it was only a few days, and ive never had a problem starting the car after a few weeks of no use

you did say 'weeks' in your original post..

in my experience, a couple of weeks is enough to flatten a leon battery.
Also, its cold, dark and wintery. So when the car was used the heater was on, maybe demister, air con? lights and the cold reduces the battery. Added to this the alarm and stereo... its more than possible.

So how exactly have you wired up your stereo?

 

[russ_coffey]

it was a week max, sorry for the confusion. its wired the same way every sterio is wired pluged the 2 plastic blocks into the matching sockets and pluged the radio in

 

[sydoggkdy]

i got a new HU the other month and finally got round to swapping the power cables so that it would remember its settings

its wired the same way every sterio is wired pluged the 2 plastic blocks into the matching sockets and pluged the radio in

"i changed the cables, no i didnt" maybe wht cables did u swap around ?

 

[russ_coffey]

the rd and yellow power cables. what othe cable is there to swap round?