Simple wiring switch set-up to turn amp on sans head unit?

[Simon S]

I’d like to run a radio delete plate in my dash – and produce all audio signal to trunk amplifier from a mobile phone/mp3 player.

I would enjoy not having a stereo in my dash for a potential thief to eyeball.

Right now, turning my alpine deck on only serves to produce the ‘power turn on’ signal to my amplifier.

What can I purchase ?

Basically, I’d want switch that I could connect to
– radio/dash constant/hot power (yellow?) lead wire
– a ground
– the blue, turn-on signal wire which runs to trunk and tells it to turn on
- and be very small – I’d want to mount it in one of the small HVAC blank panels
– and maybe light up with an orange/reddish semi-dim light – letting you know amp was ON.

Any help or information appreciated.

[Simon S]

also - there'd be teh weight reduction

which is always cool..

[StereoInstaller1]

You are using an amp to run all of your speakers?

[rares]

that is actually a pretty cool idea. i would like to know also.. any electronic gurus around..?

[Simon S]

You are using an amp to run all of your speakers?

Yep.
I've got an old Kenwood on 'tri-mode' sending high and mid to components up front - and low to the sub in back.

[Simon S]

What exactly is that power turn on signal?

Much like the antenna turn on signal?

Simply, a very low-voltage power?
Is it pulsing or anything?

[StereoInstaller1]

Nothing special at all!
12 volts, about 200mA.

[Simon S]

If a power lead is seen as a draw of power – could one tie power (yellow) wire to amp turn-on (blue) to turn the amp on?

Just interrupt the circuit with a simple switch like this one?

Maybe put something like an inline, 2.5amp* fuse on the amp side of the switch for safety?

Thinking out loud here.. any input welcome.

and thanks for checkin this Luke..


* 200 mA fuse?

[Simon S]

oooh - i like this switch.

Wish they provided dimensions..

[StereoInstaller1]

man I HATE cutting square holes. Find something round base, trust me. The hople isn't perfect, you get chassis bind and it doesn't move well, or doesn't work right, just a PITA.

Yeah, any switched source is fine.

[Simon S]

Ha! well shit - that's easy. Thanks Luke !

and the switches are cheap enough to buy a couple -then go with the favorite - or the one that fits best.

I'm gonna have to try this out. My deck is all wired with terminal/plugs - so it'd take like 20 minutes aside from getting whatever hole cut out in the button-blank.

and yeah - cutting squares sucks. Do-able - but tedious.

[Simon S]

Holy shit - I'm really excited about the idea of no deck for a thief to see.

[twistednut]

Personally I would use a fog light switch (fits the panel blanks) use the accessory power from the radio (will turn the amp off when you turn the car off).

[Simon S]

Good point on using the aux power..

Ug. looks like #8 is N/A (realOEM link)

[StereoInstaller1]

Personally I would use a fog light switch (fits the panel blanks) use the accessory power from the radio (will turn the amp off when you turn the car off).

Good call. I use my foglight switch as a manual AUX fan turn on.