What's This Thing?

[jimnastic]

Hi everyone,

Just last week I bought my first car, a 94 R33 GTS-4, but the guy sold it to me without a head unit in it. So I went and bought a new one and when I was putting it in, I noticed this little green box thats in the picture. Can anyone tell me what it is and what it does? I managed to wire everything up and it's all working perfectly, but I just found it strange that this thing is sitting there doing nothing. I don't know a thing about car stereos, so I'm sorry if this is a really dumb question

[45LDE]

might be for the areal

[jimnastic]

Yeah, it's attached to the aerial cord and it has an aerial plug in it. I probably should've mentioned that. I just don't know what it's for and wether or not it needs to be there

[rgr34]

just an idea maybe its a band expander thing for jap radios to get aus frequencys for fm radio.....

[hazerb30]

yeh that was my thought too.

[Doobs]

Yeah, it's either a band expander or an engine noise filter.

[jimnastic]

Thanks for your anwsers so far! I just thought i'd mention that the cord for the aerial comes out from behind the glove box and then splits into 2. 1 end goes into the back of my head unit and the other half goes into this box. So I assume that it is actually doing nothing at all because it isn't really connected to anything. Does that make sense?

[RANDY]

Is it powered via that red cable? I guess the other option is an antenna BOOSTER, rather than a range expander.

Someone may have run a TV screen kinda HU seperately and needed better tv reception.

My reception (radio) is pretty aweful most of the time. =-[

[Chris Rogers]

FM band expander. the antenna amps look different.

[Chris Rogers]

either way its not needed..

[nissanskyrice]

had one similar in my 34 which had a tv headunit in it so might have been a booster for that.

[RANDY]

I'd put my money on Chris's answer ;o)

[dnbutts]

Band expander, if you have a aussie standard HU then piss it off out of there. Dead weight!