Any sound engineers in the house?

[RPG340]

I’m told it’s possible to wire my stereo head unit to the leisure battery as well as the main battery? Anyone know a simplified explanation

Also, getting sound from TV through stereo without a massive aux lead? It’s n

 

[Richard n Ann]

Leave it on the engine battery and fit a battery master to keep it charged up from the leisure battery

For the TV sound you can get little FM transmitter things that you tune the radio into.

 

[RPG340]

Thing is I don’t want to have to leave the keys in the ignition when using it.

 

[Richard n Ann]

Some fiat radios have got a setting whereby the radio comes on for several hours if you switch it on with the ignition off. I've never had to set ours but I've read about others doing it. Someone will know.

 

[cmcardle75]

I wired my main feed to the hab battery as you suggest. I also have a switch that chooses between "always on" and "switch with ignition".

Modern 3rd party audio equipment needs a (yellow) full time feed (which is where the power is drawn from) and a (red) ignition feed (which tells it when to turn on). You can switch the full time feed to the hab battery and then put a switch in to choose between the ignition signal or simply on. Some older stereos (and some from certain car manufacturers) have a system where the main power comes from the switched feed and there is a low current full time feed to maintain the memory. These are less easy to convert, although it is possible with a relay. If you have a modern manufactuer fit highly integrated stereo that handles lots of vehicle specific functions (such as choosing headlight height & service intervals etc), it might not be possible.

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[Boris7]

You’ll have two feeds to the stereo head one permanently live, one switched by the ignition feed, simply remove the ignition switched lead and move the permanent onto that, if this doesn’t work, splice the permanent feed to make two.

Just avoid turning the sound right down and therefore flattening the battery because you’ve left the radio on.

You can get a Bluetooth to aux for the TV sound, but they tend to delay the sound, so unless the TV has a setting to balance the sound over aux (the BT will be on aux as far as the TV is concerned) it may just drive you mad.