TV touch screen ?

[Smartjames]

Re: TV touch screen ?

Yeah think I'm gonna have a good look tomoz and weight up all the options I think !


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[Smartjames]

Re: TV touch screen ?

well I'm thinking this one ?? And did you say needed 2 RCA leads why ?? One to headunit to amp and other ?


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[Smartjames]

Re: TV touch screen ?

And also just asking where has people grounded off the amp wire ?? Where is a good solid connection ??


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[problemchild1976]

Re: TV touch screen ?

The battery - it's really close

JJ

- - - Updated - - -

The battery - it's really close

JJ

[Smartjames]

Re: TV touch screen ?

That's the red thick one (battery to amp)

brown thick one (been told to the car to ground it) but where ?

Thin blue amp to head unit (remote)

crossovers into amp then other ends tweeter and woofer x2 (left side and right side)

then lead from amp to subwoofer then done yeah ? Or am I missing something ?!


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[Smartjames]

Re: TV touch screen ?

Oh sorry use the negative on the battery ?! God I do wonder how Im making it through life you know lol

But am I needing 2 RCA leads then or not ? Sure adrimo said I would ?!


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[adrimo]

Re: TV touch screen ?

You should earth the amp to the car body, bare metal.

I used the seat mount after sanding down the paint, I have never used the battery to earth and it's best not to.

You can use 1 RCA lead if your amp is compatible, I used 2 as my head unit has 3 outputs, front, rear and sub, so I used front for my components and sub for my sub, I can then control the sub level, phase and crossover from my head unitif I wanted to. So for example if I'm listening to a drum and bass track I can dial in extra sub level or reduce if listening to radio for example.

With 1 RCA you will only be able to adjust as a whole or on the amp itself as the signal is only received on one channel

Basically extra flexibility and control

[problemchild1976]

Re: TV touch screen ?

I always thought that to avoid noise in the system, it was best to ground all the audio equipment to the same location.

And that the battery was the best grounding point.

By grounding to the bodywork, surely you are adding in difficulties such as bad contact and a noisy path back to the battery??

JJ

[Smartjames]

Re: TV touch screen ?

@adrimo well at the moment the due to with the single HU I'll only have the 1 RCA on it.

And yeah I think it will be easier to ground it on the battery then as long as it works perfectly it's all good really


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[heinkeljb]

Re: TV touch screen ?

Most amplifier manufactures say to keep the leads as short as possible.

This usually means that you have to have a lead direct from the battery with a suitable fuse as close to the battery as possible (as there is unlikely to be suitable connection elsewhere that is capable of supply the power needed).

So depending on where you fix the amp in the car as to where the nearest suitable earthing point is. If it is behind the seats in a ForTwo, then you have a choice of the seat rail bolts, or going through the firewall (there is an existing hole) and terminating in the engine bay.
That way, you get the leads as short as possible.

As long as you get good earths, good connections to the battery via a fuse. Good connections to your head unit and speakers you should not suffer from weird electrical noises in a modern car. They should have suitable suppression systems in place already. In older cars, you can get alternator whine or HT clicking on your audio due to bad suppression / bad connections.

John

Removed the "updated" double post - some issue with a pop up box asking if I wanted to leave this page... say yes and it double posts!

[Smartjames]

Re: TV touch screen ?

Many thanks john very useful information

Cheers


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[Smartjames]

Re: TV touch screen ?

Sorry john is it possible to show me where you mean ? A picture or some thing please !?


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[heinkeljb]

Re: TV touch screen ?

There are not a lot of places you can put things in a ForTwo.

Amp, depending on it's size can go under a seat, or behind a seat. Either place has carpet, so easiest way to fix the Amp in position is using stick on Velcro hoops, stick the hoop side to the bottom of the Amp and put is where you want it. If you use enough Velcro it won't go anywhere!

Depending which side of the car your battery is located, put the Amp that side. Lift the edge of the carpet and you can run the main power lead and the remote switch on cable down the side of the car to the front. Use a suitable fuse within about 6 inches of the connection to the positive terminal of the battery. That will limit the length of any possible "hot" wire should a short develop. DON'T connect this up till you have finished ALL wiring!
The remote can then be taken up the side of car in the footwell and so to the back of the head unit.

The Negative power lead can now be put in place. If you put the Amp under a seat, the rear fixing bolt on one of the seat rails can be used as a earthing point. Make sure you clean things to bright metal, preferably under the rail on both surfaces.
If you put the Amp on the sloping firewall behind the seats, then you have choice of earth points. the seat rail as above or you can go through the carpet near the handbrake and through the rubber grommet into the engine bay. There are a couple of bolts there which you can attach your cable to. Again, clean things to bright metal.

When you have tightened the fixings, you should cover the bright metal with something to stop the rust. Paint, grease, will all work.

Now you can run your Amp speaker input wires down the other side of the car under the carpet along with your speaker wires if you are using your Amp to power those.

Depending on where you put your Sub Woofer, you can hide your wires under the carpet.

I prefer my wires not to move around, So I put a line of impact adhesive (Evostick) where I want my wires to sit. Then put dabs of impact adhesive on the wires, wait till the glue is tacky and push the two together. The wires an always be pulled away from where you have stuck them, but in general will stay where they were put until then.

John

[Smartjames]

Re: TV touch screen ?

Thanks for being patient with me john many thanks for the information


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[Smartjames]

Re: TV touch screen ?

So do I put it inbetween the floor of the car and bolt/washer or bolt and seat rail then ?



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