Remote Wire Question
 

How much load can a remote trigger wire handle? I am looking at hooking up 2 amps + pac-tr7 bypass unit to my alpine w505. Will it be ok to splice the 3 together?

get a Phoenix Gold Desmazes Distribution DD5, i got one and they are super cool....

Yes 1234

I had 2 fans, 2 amps and a digital cap wired to my Pioneer deck amp turn on. You should be fine with 3.

Having seen the remote out on a couple of decks burn out from too much current draw, I use a relay to switch more than 2 things on or off....:smokin:

^^ x 2. Defiantely use a relay. Much more reliable for multiple devices. Plus there isnt a chance that you blow the remote if you use the relay

You should be able to hook up as many amps as you want. All amps (unless the engineers are morons) will have a high input impedance (for the remote turn-on).

As hooking a fan, or any device alike; I strongly recommend NOT using the remote turn on as a power supply. You're lucky if it doesn't damage the deck. The remote turn on was not designed with that in mind.
Typical(12v) fan will use 250mA-1A. The remote turn-on does not have a large current output. By large, probably not more then 500mA.

As for why your deck can handle 2 fans; You got lucky. Obviously current limiting circuity was used, or they designed it with higher current output.
I would recommend contacting the manufacture and ask how much current can be supplied by that connection before testing your luck like that.

There is never a need to use the remote as a supply. You should be using a transistor (to keep things simple) for your fans.
A 2n2222 can putout just under 1A, and takes no more then connecting the remote to the base, battery to the collector, fan (V+) to the emitter.
They're about 50cents each.

datasheet:
http://www.datasheetcatalog.org/datasheet/SGSThomsonMicroelectronics/mXyzzyw.pdf

Ahh, I take too long to type. 2 people replied with the same warning about the remote wire.

Active devices like amps and line drivers sink less than a few milliamps of current from your remote output. Check the current draw of anything you connect to it to make sure the sum does not exceed the max. This includes relays intended to reduce the load on your head unit.

What things? No hostility intended.:)