Thread: Is is OK to run 2 items into the aux jack?
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Old 11-21-2007, 03:22 PM
fogglerus fogglerus is offline
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Originally Posted by Tork View Post
Is it OK to run 2 things into the aux jack by using a 2 female into 1 male jack? Will it hurt anything, do any damage?

I have sirius radio, and I just got a new Garmin that has XM (and XM nav-traffic)

What I am currently doing is unplugging one unit and plugging in the other when I want to switch.

I dont want to do any damage to my aux input OR the sirius OR XM/GPS

Thanks in advance.
While it is usually OK to hook one output to two inputs at the same time, it is never OK to connect two outputs to one input at the same time. It might work for a while, but eventually you will damage the output circuits of your devices.

I'd wire a switch to swap between the two devices, or do a Google search for "passive mixer". A passive mixer can be constructed from a handful of resistors to help isolate one output from the other, but it is not ideal.
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