Car audio advice

bradleigh1977

Thanks for taking time to read this


i have a 2003 grand voyager, which has factory dvd and screens etc. It also has an AUX set of rca's for playstation etc.

Now my intention is to do the following....

leave the dvd, but on the aux side, install a dvb freeview box. All i want to know is how hard it is to connect the power for all this i mean...

the aftermarket cd multichanger is under the seat, which i do not use. it has yellow red and black cables going to it, and it works on the ignition. Is it a case of just jumping into the red and black to get my power? and would it be ok in "AMPS" terms to wire my freeview box and the booster aerial all into these red and black cables?

I could get a man in to do it, but i am quite competent myself.

All i really need to know is if it will over load it or anything like that, or if i should run seperate cables from the battery. It will be easier if i can "t" off these cables as thats where i want the equipment to terminate.

Thanks in advance for your help...


brad

Fifer

Are your Freeview box and booster 12V DC? Where are you mounting your aerial and are you expecting to get reception on the move?

googler

All freeview boxes that I've seen run on 240v AC mains. Do you have one that runs on 12v DC?

Considering that I need a honkin' big aerial, pointed directly at my nearest DVB transmitter, and not pointing even a degree or two to the side, and even then, the slightest adverse weather or low cloud and the picture breaks up...... what chance do you have, in a car that's changing direction most of the time, with varying distances to/from the transmitter(s).....?

You may well have a booster for the aerial, but that relies on your aerial getting a signal in the first place. Boosted nothing is still nothing.

bradleigh1977

Right.....


the freeview is 12v, there are millions of them, they are simple to install ( if you plugged tnem in the cig lighter but i dont want too ) as for the signal, i have a really rubbish aerial you get when you buy a small portable tv with freeview built in and the signal is fine. I have bought a boosted 12v aerial which sits on the top of the windscreen.

I had a brand new discovery which had freeview built in and it was fine on the move, if you changed area then you just re tuned it...i.e yorkshire tv to granda tv area....

Maybe what i should have said was

i have a 12v device, can i just cut into the multichanger wires to pick up the current, as this will the be switchable on the ignition? Do you think it will be ok, or will it overload it etc? the 12v devices do not use much current, comparred to something like a power amplifier.

thanks

bradleigh1977

Does anyone have any ideas?

callistris

I'm guessing the cd changer is getting its power via the headunit, so without knowing the power for the freeview I wouldn't know if its ok to tap into that power supply tbh.

The best way to be absolutely sure is to run a fused power direct from the battery and earth to the vehicle chassis, same as you would for amp installations.

bradleigh1977

callistris wrote: »

I'm guessing the cd changer is getting its power via the headunit, so without knowing the power for the freeview I wouldn't know if its ok to tap into that power supply tbh.

The best way to be absolutely sure is to run a fused power direct from the battery and earth to the vehicle chassis, same as you would for amp installations.

Thanks for the response. The Cdchanger is getting its power from "behind" the stereo. red,black and yellow cables go to under the passenger seat.

I never use the changer as it has a factory cd anyway, also its set into the radio as well, ( which i think has been done wrong as FM is not that good reception in my car )

If i want to use th changers wires would i need to find out what kind of power the box needs/uses, and compare that to the multichanger?

I do have the manuals etc for the multichanger so i will be able to find out the current etc.