Should I connect new stereo to auxiliary battery

Submitted: Sunday, May 21, 2006 at 10:24
ThreadID: 34086 Views:2742 Replies:6 FollowUps:3
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I have a 1991 toyota 1hz troop carrier with professionally installed isolated dual battery system. I've just purchased a new stereo to replace the tuner/tape player stereo I previously installed a few years ago which runs off main battery and acc circuit (as per standard) with no problems.

The new stereo is nothing fancy and will be installed as is. Its just a pretty ordinary CD/tuner with USB drive input (the USB is why I got it - so we can carry all our music without needing tapes, cds, etc - and no moving parts to play music). There are no additional amplifiers or anything like that.

I have two questions:

First, is it worth considering connecting the new stereo to the auxiliary battery so I can run it with the engine off without risking draining the main battery (rather than simply, and far more easily, switching the units over without having to do any changes to existing wiring)?

Second, if I did attach the tuner to the auxiliary battery is it ok to simply connect both the constant power (yellow) and the acc power (red) wires to the auxiliary power (i.e. splice both to the same (fused) hot wire)?

Thanks
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