ok people i just brought a box full of audio gear i had to by this and the sub the sub i was after mainly now the amps that come with it are some pionners carrozzeria amps to of them
200x1 and i have to of these amps and im running a alpine deck now problem is theses amps have no remote switch on the amp so it is just earth and power so how do these amps turn on with the stereo ? .do i have to wire the power wire fro mthe amps to the back of my deck and run some soft of on off switch ?

If you have only power and ground, then you certainly do not want to hook it up constantly to +12V and ground, you will drain your battery flat in no time.

You have a couple of options... From most difficult to least difficult.

1) Open the amps up, find the power pin of the switchmode IC, and cut the track, solder a power wire to this - the power supply will not work until power is applied.

2) Use a relay driven from the switch lead - only problem is that the output of most of the switch leads is 100ma (0.1A) tops, you could get very close to that with some relays - I would suggest a MOSFET to do the switching duties, or use a transistor to do the duty of switching the relay (or a darlington pair if you are paranoid)

3) Run the amplifier off a relay driven by the ignition. Not sure of the current requirements of your amp, but you may even be able to run it off the ignition wire direct.

Cheers
Heath Young

From what I have heard, those Carrozzeria lineup of devices are very complex systems, and a missing remote power lead would probably mean the amp is also digitally controlled by a secondary controller, a very similar system to the McIntosh system in the new Mini's.

Are there any other switches/knobs or strange looking connectors (onces you dont normally see on a amp)?


If the above is not the case, then use a horn relay to create your own remote switching. Just don't power the amp directly from the remote wire from the headunit since the current is definitely not sufficient.

I'd go with relay off accessories position.
You may want to also install a switch to control it.

Correct me if I'm wrong, but aren't there some amps that activate when they detect a signal?

Correct me if I'm wrong, but aren't there some amps that activate when they detect a signal?
Don't see why not... Stolen TE have you plugged it in yet?

i havent plugged it up yet no im just installign the deck now

i thought the same as the amps detects a siginal it will turn on but unsure will have to try it if not i will work out soem relay system thansk heaps guys i lack a bit of car audio knowledge i brought 2 off these amps an us audio sub in custom box and a tv dvd to audio system trasfer thinggy for 250 bucks deck was 220
so for 470 buck i got cheap stereo

well tried it all today ad no succsees i think im just goign to take it to auot barn

umm, personally i know of a lot of people here in adelaide that have had trouble :rant: with autobarn's dodgy installations, especially down south. i would reccomend tonkins or a similar place instead.