my car is in bits so need a quick answer

[W3JLT]

does anyone know if it is possible to connect an alpine 9812rr up to to a 12v source behind the dash rather than having to run a cable to the battery. i dont have a fuse wire to go to the battery and cant get to a shop to get one cos my car is in bits.....

any ideas would be great!

Thanks in advance

sory for the blunt post!

 

[TheCake]

Yup. Just wire it into something like your heated rear window.

 

[msa197]

Could try the fag lighter???

 

[W3JLT]

the fag lighter isnt live when the engine is off, just tried that with my multimeter.

where would i find the heated rear window wires on a 52 plate clio? from the back of the fuse box? surely that isnt live either when the engine is off? Im assuming the head unit needs a constant 12v even with the engine off to keep its settings?

Thnanks so far.

 

[Dink]

are you using the internal amp??

if so then dont connect it to anything other than a seperate feed

 

[W3JLT]

yeah, dink, u reakon there is nothing else i can do apart from that?

 

[Dink]

my bro melted his wiring loom together in his car before by not putting a seperate feed in.

im not saying this will happend but it could, so id rather be safe than sorry

 

[muz]

the upper alpines have a large internal amp inthem (4x22rms I believe) which needs decent power so you need a seperate fused wire. Go for at least 16 guage for extra safety.

However if you are runing without the H/U amp then its fine, just press the F button down and move to IRC power turn it off then you will by pass the amp altogether

 

[Dink]

id use 12 guage for it to be honest

 

[Bryan]

the reason they suggest it is to cover the worse case scenario

as dink has said above, thats it

always connect it to the battery

 

[Gary G]

could you not just fuse it with a low rated fuse close to the unit so that if the wire was overloaded the fuse would blow and things would be kept safe?

 

[Dink]

there is a fuse in the dc-dc converter(mine is a 20A).

that means if you turn it up too loud the fuse will keep blowing and just you would get pissed off and stick a bigger one in there