Home project, ICE for car with 3.5mm jack

Sanjøy · Post by **Sanjøy** » Tue Oct 02, 2012 2:18 pm

Afternoon, as I have so much time on my hands with two under 18 months thought I needed something to keep me amused. I thought I would post here so the SE collective can advise on my mistakes or to simply amuse with my cackhandedness as stanley goes through some leather or hand.

Car has bluetooth for telephone calls but only 3.5mm for music input.

I am wanting bluetooth music from my iphone and also a video system for the nippers behind me that is supplied via a itunes managed device, namley a spare 3rd gen 8GB ipod nano.

I plan on using a 3.5mm to bluetooth box juiced off a +12v->USB communicating with A2DP to the iphone thus permitting the iphone to work seamlessly with the car phone. I think it will pause music for calls coming in.

For the rear video I was thinking a either a mini dock else a cable that charges the ipod and ouputs s-video or phonos. The screen would be a cheap unit from ebay, some have speakers, I could route sound in to the stereo but would send me mad. I guess when they are older bluetooth headphones would be better.

Anyone already done this ?

S

woody · Post by **woody** » Tue Oct 02, 2012 2:59 pm

No.

But the random guy that gave me a lift in the midle of South Korea the other week had a iPad containing thingy hanging off the head-rest, which given the cost of a 2nd hand & new entry cost of an iPad now is probably much cheaper and easier.

Edit: Unless the point is to be able to control the screen from the front seats, in which case, I don't know if you can do some sort of mirroring from iPhone to iPad?

Sanjøy · Post by **Sanjøy** » Tue Oct 02, 2012 3:20 pm

Good idea, thought of a Nexus 7 but Mrs will leave it in there and the windows will last till the she first parks up.

robin · Post by **robin** » Tue Oct 02, 2012 8:01 pm

I worked on a project which was a communal bluetooth "audio totem pole" for use in play parks and so on - basically you show up with your phone or whatever and stream your music to the totem pole which contains the power amps, speakers, etc., to make it audible outside.

It used A2DP and worked fine right until the iPhone4 came along; initially anytime you connected with an iPhone4 the bluetooth A2DP chip crashed; later we got it fixed so that it just restarted. In either case, it never worked with iPhone4 and I guess it won't work with a 5 either when that comes along. I have a funny feeling there is something non-standard about Apple's A2DP that means you need to buy something that incorporates some Apple magic to make it work.

If you don't plan on using iPhone4 or beyond I'm sure it'll "just work" for so long as you can persuade your phone to remain connected to the A2DP gateway.

I suspect the music->incoming call->music handover will be far from seamless ... indeed I would not be surprised if your phone refused to connect to the car and A2DP device at the same time - you can pair to both but to have active connections to both, that's complex.

Cheers,
Robin

Sanjoy wrote:Afternoon, as I have so much time on my hands with two under 18 months thought I needed something to keep me amused. I thought I would post here so the SE collective can advise on my mistakes or to simply amuse with my cackhandedness as stanley goes through some leather or hand.

Car has bluetooth for telephone calls but only 3.5mm for music input.

I am wanting bluetooth music from my iphone and also a video system for the nippers behind me that is supplied via a itunes managed device, namley a spare 3rd gen 8GB ipod nano.

I plan on using a 3.5mm to bluetooth box juiced off a +12v->USB communicating with A2DP to the iphone thus permitting the iphone to work seamlessly with the car phone. I think it will pause music for calls coming in.

For the rear video I was thinking a either a mini dock else a cable that charges the ipod and ouputs s-video or phonos. The screen would be a cheap unit from ebay, some have speakers, I could route sound in to the stereo but would send me mad. I guess when they are older bluetooth headphones would be better.

Anyone already done this ?

S

Sanjøy · Post by **Sanjøy** » Tue Oct 02, 2012 10:18 pm

Oh cock.

Andy G · Post by **Andy G** » Wed Oct 03, 2012 9:53 am

Robins right. the iPhone bluetooth set up is a nonsense.

Much better now that it was initially though.

Also dont run more than a couple of Bluetooth devices in the same space as you will get drop out. We get it a lot when we do trade shows.

alicrozier · Post by **alicrozier** » Wed Oct 03, 2012 10:24 am

A bit of a tangent but I use this device:
http://www.jabra.co.uk/Products/Bluetoo ... ra_STREET2

It maintains 2 Bluetooth connections at the same time, in my case TomTom and Blackberry. Means I can stream music from either TomTom or Phone, interrupts for Nav instructions or for calls. It works pretty well but mine is older model and battery time is limited.

Sanjøy · Post by **Sanjøy** » Thu Oct 04, 2012 1:50 pm

alicrozier wrote:A bit of a tangent but I use this device:
http://www.jabra.co.uk/Products/Bluetoo ... ra_STREET2

It maintains 2 Bluetooth connections at the same time, in my case TomTom and Blackberry. Means I can stream music from either TomTom or Phone, interrupts for Nav instructions or for calls. It works pretty well but mine is older model and battery time is limited.

Cheers Ali looks much better than the HK knockoffs I was looking at. The problem I am facing is that all these devices need to be switched on. I am after something I can hide away and will come on with power hitting the USB when the ignition is on.

Post by **campbell** » Thu Oct 04, 2012 9:44 pm

Tell the kids just to look out of the window?

Ferg · Post by **Ferg** » Fri Oct 05, 2012 10:27 am

http://www.videojug.com/film/how-to-mak ... sb-charger

Scottish Elises